You conveniently left out the justification for that statement: because the author believes monocultures are bad, and doesn't want to support them. I think that's entirely reasonable, and characterizing it as "goth subculture" is dishonest.
is just
> it's popular, it must be eschewed.
after a chatgpt pass
You are right to be mindful of the similarities. But it could be a mistake to be dismissive of the deeper thinking that might be behind the statement if it isn't just AI spew.