You don't understand critical race theory in the slightest... neither "corrupt natures" nor "instinct" have nothing to do with it. Indeed, one of the foundational assumptions of critical race theory is that race itself is culturally constructed, having no true connection to biology and thus arbitrary in form. Racial stereotypes are created to serve the interests of the powerful, not the other way around. What is said in critical race theory is that due to participation in an inherently racist social system, privileged classes are obliged to participate in racism. This isn't because there's something wrong with their genetics, but because their social climate has been engineered in such a way as to privilege their life and prerogatives over others.
Are you joking? For CRT, focus on race is
everything. There are no other explanations. The individualism of the enlightenment is rejected. Thus, I reject CRT.
You simply aren't correct about that. Race is indeed very important within critical race theory, hence the name, but the kind of "race" you mean, an inherent quality of a human being that you can perceive by looking at the pigmentation of their skin, is definitively rejected by all formulations of CRT. Race, in CRT, is exclusively and definitively a
social construct. Real, but optional; real only in the sense that people make it real by beleiving that it is and acting accordingly.
The idea that "everything" is defined by race in CRT is also a very silly thing for you to claim, as I am certain you've heard of
intersectionality theory, itself the intellectual offspring of CRT and included in most theoretical descriptions of race these days. Intersectionality theory, at its core, asserts that race cannot be understood in isolation, but only as one component of a more complex social system in which other hierarchical signals of status interact with and are modified by concepts of race.