Not OP but I feel that all those things you've listed are all at least somewhat addressed by this advice though. You're certainly right the majority of people in the States are overweight and don't have these problems but for the proportion of people who are incel, isn't it reasonable to say there are a proportionally higher amount of unfit people than fit people?

Still, the point of exercising, showering, caring about the way you look isn't just to look aesthetically better, it's about coming to appreciate yourself and treating yourself right. Exercising for instance helps against depression, and builds confidence and discipline in yourself. All things that help in the end address social inability. Check out /r/eood if you're curious.

I know I'm probably not the first to say these things but in the end what is there to lose by taking this advice? If you're right, you'll have proved us normies wrong. You can come back to the subreddit with a post of your experiment showing how right you were, and how stupidly ignorant we were... But if you're wrong, you'll be a happier person.