Every liberal does it too, from center right radlibs to far-right "conservatives": the most extreme right fringe liberals hate the mainstream liberals for not being bigoted enough, the mainstream libs hate the radlibs for not being cruel enough, and the radlibs hate the left for not being chauvinist enough.
Denouncing chauvinism in particular is like a liberal moral event horizon, a cardinal sin against their self-interested belief in the righteousness of the imperial hegemon that keeps the treats flowing at gunpoint.
People abuse it for their convenience and it oresents epistemological problems, but the dynamic you seem to be describing g is absolutely a real thing. Minds are not indivisible.
That's putting it lightly. Brains are not indivsible, and you can absolutely overlay a divisible conceptual schema (id, ego, superego, whatever) onto the mind, but as a functional unit for interaction and access, minds are indivisible. I can't walk into another part of my mind like I can walk into a different room. If I could, who is doing the walking? This model seems to posit a sort of Inside Out scenario where we're actually a constellation of different cognizers, which I don't buy.