It's not the "White, middle class" that's the perjorative... It's the "boomer" part... Any redpilled person knows that boomers, especially White, middle class ones, are out of touch and part of the reason we cannot win the culture wars against the Jews. Boomers hold us back.
You're right, I don't know that user .
But I do know "White, middle class" is not a perjorative.