It also interferes with getting healthcare for these issues, because doctors grow up in the same society everyone else does. I'm not claiming that obesity would not have these consequences in the absence of fatphobia. I don't know that. NO ONE DOES. We can't, without having done the experiment, which no one has ever done. I don't have solutions to propose here, exactly, except to always question your assumptions and try to be kind and decent. That can't hurt.