Lately I find myself agreeing with this position...
I think we should set aside the issue of blame for the moment. This person is the product of his biology interacting with his environment. We all are. There is no "ghost in the machine" that can step back from biology and external conditions and decide to respond to things differently. If you were him (had his genetics and experiences), you would BE him. You would be exactly like him. If I were him, I would BE him. We can judge his behavior, but we're deluding ourselves if we believe we would be any different if we were in his position. We can see "solutions" to his problems because we're looking at it from the outside, with our own experiences, and only an extremely limited amount of insight into his actual conditions (so our solutions might not be solutions at all). From inside, we would experience exactly the same conditions he is experiencing, the ones which are driving him to act in the way that he does, and we would be driven to act in exactly the same way.
When I say that no one wants to be sick I mean that in an overall, inclusive sense; from a narrower perspective, ofc, some people, for certain reasons, do prefer to "stay sick" than to change. But this is always the brain making predictions about different courses of action and choosing that course which it predicts will lead to the least amount of pain. When people "stay sick" it's because they're avoiding a course of action which they believe will lead to something worse than what they're already dealing with. The resistance is coming from the brain's survival instinct, which responds to pain. What people tell you is just a rationalization for their actions.
Ofc, the predictions that their brain is making about probable outcomes may be completely distorted. That's the kind of thing CBT/exposure therapy helps with. But even CBT will only really help in certain kinds of contexts, like when the risk seems small, the negative outcomes tolerable, and the person has some kind of support network. It's in these kinds of conditions that people get better. If you can convince a person that a course of action will really lead to an increase in the quality of their life, and that they have a reasonable chance of success, they will take it; because everyone wants to be happier than they are. But you, as an outsider, are not estimating risks the way that they are.
Their experiences have shaped the lens they use to view and understand the world and their predictions are based on the experiences they've accumulated through that lens, not through your lens. What seems possible to you won't necessarily seem possible to them. And, for that matter, since you are not living their life, their predictions may actually be
much more accurate than yours. Just because most people don't openly reject Person X when they push themselves out of their comfort zone doesn't mean they won't openly reject him.
If you assume that everyone with SAD has more or less the same kinds of resources available and has had similar kinds of experiences (as many therapists do) then you are going to fail people with fewer resources. This is the main reason, I suspect, why so many people have bad experiences in therapy and decide that therapy is worthless. Because their therapists aren't actually listening to them; they're making assumptions which are every bit as distorted as the assumptions their patients are making. And then those therapists blame it on the patients and say that they "just don't want to get better." But their patients' brains work just as well as the therapist's brain does, and it's doing its best to protect them from harm. It's rejecting the therapist's suggestions because it sees them as harmful, considering the conditions they're facing.
Their lens may be distorted, their information may be distorted, but the tool they're using to make their predictions is just as powerful as yours is, and they have infinitely more insight into their own conditions than you do. So, at best, therapy is always a cooperative venture; the objective is for one brain to try to help another brain find out where they can make the most important changes with the least amount of risk. And then to support that brain in making those changes. There is no room for blame in this arrangement.
People's behaviors are always adaptive responses to the conditions they've experienced. They're not perfect adaptations (that's why we try to educate people and show them different kinds of coping techniques) and often they're very destructive (like an adaptation that tells them to kill all their enemies). I'm not saying people aren't responsible for the consequences of their actions, or that they shouldn't be held accountable (a harm is a harm is a harm), and I'm not saying that many adaptations aren't ultimately self-destructive because they're working with a very distorted lens and very distorted information. What I'm saying is that people do not consciously, intentionally, maliciously, stubbornly choose to be difficult or stay sick at an overall level. Even when they are behaving very destructively those behaviors are always serving some kind of ego-protective function.
It seems to me that the identity "The One True Social Phobic" is very important to this person's feeling of self-worth. Without this identity, what is he? He's a nobody. He's nothing special. He doesn't have anything else to fall back on. (This is what I suspect
he is thinking, not my opinion of him.) It's better to have social anxiety than to feel like your life is utterly pointless and not worth living. Sharing this identity may
be his reason for living atm. Knowing that he has "the most serious case of social phobia in history" is how he gives himself permission to feel what little self-compassion he allows himself to feel. Knowing his problems are "more severe" than anyone else's gives him what little feeling of self-respect he is capable of. If he does not have that identity, if he's created this whole mess himself, then he will stop feeling compassion for himself. He will stop respecting himself. He will hate himself even more than he already does. Even if this isn't exactly how he's set up inside, it will be something like this.
When someone comes at him with a Righteous Hammer of Truth, what happens? He retaliates. He digs in his heels. Because he's literally fighting for his life. If you manage to break through his distortions this way, and get him to see how he's doing all of this to himself, you'll create a crisis, and who knows what will happen. He will have to find new reasons for people to feel sorry for him, and for him to feel sorry for himself, because it's the only kind of compassion he ever experiences, and the only way to do that is to make his own problems worse. He might attempt suicide.
"Tough love" is an incredibly dangerous tactic, and considering how rarely it actually works, and how harmful it can actually be, it's just not the kind of thing I want in my toolkit. My dad is a "tough love" guy (he kicked me out when I was 18 because he thought it would be good for me) and it did me absolutely no good. But that doesn't mean you have to coddle people, either. One can be brutally honest about how all this stuff works without blaming anyone for being the way that they are. If you are depressed and moping around, people won't want to spend any time with you. It's not pleasant, it's not fair, but that's how it is. That doesn't mean it's your fault that no one wants to spend any time with you. It's just the outcome you get, brains operating the way that they do.
This is just my opinion, and I know most people disagree with me, but every person, without exception, is doing the best that they can. Just like every other organism on the planet. The problem with humans is that we've created very toxic mental climates for ourselves through our distorted ways of thinking and it makes healthy environments for people to grow in very hard to come by.