I don't think self-perception and outside-perception align very often for anybody, mostly because we are incapable of perceiving ourselves without bias and we can't control other people's subjective impressions of us.

In a way, their behavior could be interpreted as "revolting against categorizing humans by inventing ridiculous new categories", which might be a nobel and idealistic cause (as categories are often the source of prejudice) but it's also unrealistic because it denies certain biological realities of which none are subjective in any way.