It isn't enough for an individual to believe inferiority or superiority based on race, it's now about marginalization. So you can be racist with any intent or without any belief of racial superiority. If there's inequity in any system, and you might contribute to that system, you are guilty of racism. The colloquial beliefs of racism were thrown out for CRT.
I think marginalization works hand in hand with racism. You must have the idea of racial superiority to be a racist. A racist feels his/her race is most superior and others are inferior. Inequity in the system doesn't necessarily mean it's racism. Though like marginalization, inequity also works hand in hand with racism. Racism as the name implies has to do with race.
Marginalization and inequity are the largest myths pushed by pseudo-intellectuals in sociology fields. Ask them how many unarmed black people in the U.S. die by police every year (I've been told that U.S. law enforcement are by far the most racist criminal organization in the world, government funded), the number is about a dozen every year. Yet we are led to believe law enforcement marginalizes minorities based on a misunderstanding of basic statistics. How much marginalization happens because of an inherently corrupt system versus a person choosing to make bad choices based on their own free will?
If minorities earn less on average compared to whites, is that inequity of the system or is that dependent on personal decision making? Depending on the country you live in, it could be one or the other. Developed countries do not have a problem with systemic racism. The real systemic racism exists in places like China, see the Uyghur Muslim genocide.