Typical BS from those idiots that write such articles. What? You come for a short time to Thailand and straight away think you are Carl Jung on the psychological stuff in other countries. Clearly you understand nothing of Thai/Asian culture and that perceptions of beauty are completely different here, not to mention they don't want your silly DEI rubbish either... and I see very few "traumatized" Thai males about as the girls are naturally slim here, and if they aren't, then stop feasting and you'll be okay.
Beauty is subjective, and the locals like it how it is, same goes for the rest of Asia... the girls are naturally slim, leave them to it. Even in the West, it has always been fashionable to be slim, look how many are using weight-loss jabs and any idea to lose weight. Take your sanctimonious DEI nonsense and judgement and shove it where the sun doesn't shine... stop lecturing people, get over yourself, making issues where there aren't any, and let do/like what they want to. All this sort of nonsense is just an attempt at social engineering... which is sinister.