Teenagers having the idea reinforced through social media that being different is bad, is bad. Left to their own devices, that is the default social order that children create.
Merely existing on the playground, on the field, or in the cafeteria in the 80s and 90s reinforced the idea that being different was bad.
How is this unique to post-2012? At least Instagram doesn't hold you up against a chain-link fence while TikTok punches you in the gut for being different.
But come on. Diversity is not actually bad. People being diverse even if they think it’s bad is not bad. And memes are not a meaningful driver of diversity.