But... you don't see a problem with this? I don't know if nutrition is the example you want to use. This is science we're talking about. It can't afford to be w

But... you don't see a problem with this? I don't know if nutrition is the example you want to use. This is science we're talking about. It can't afford to be wishy washy like this and we don't change our ideas about how planets align based on which culture you're in. You suddenly not have appendicitis because you're screaming in pain below the acceptable cultural threshold. In one society, being gay causes immense stress, and may therefore be classified as a mental disorder. As it was. Yet it isn't a mental disorder, obviously. Problems caused by the difference itself, and problems caused by society's attitude towards the individual must be separated. On the other hand, certain problems, like autism, are fairly solid as to whether they exist or not. Whether you live in a society that mistreats autistic people or a society that idolizes them, there's a distinct difference people may possess. Confusing disorders with inability to cope with an unaccepting society is very dangerous, because it leads to precisely what you're saying: overdiagnosis, and using diagnosis as means to shut people up and avoid critiquing society itself, and other things.