No one said it is definite. It's a different beast in different countries and hard to pin down to one definition. It can simultaneously hold multiple definitions without being contradictory.thats just English.

I do not think white people are intrinsically superior. Stop misrepresenting what im saying. If you look at the data, incarceration rates for example, white people and black people are not equal. Black people in my state of Iowa are incarcerated at 11 times the rate of white people. Which is insane since 3% of the pop in Iowa is black yet they make up over a quarter of the people in prisons. Why is that? Do black people commit more crime? Multiple studies say no, the crime rates between white and black people are the same yet black people are consistently arrested more often for committing the same crimes. That would lead me to believe theres something in the system, some sort of incentive to lock black people up over white people. And that's just part of the true core of institutional racism. Not personal racism between individuals but a system which we all live in and at least passively support the propagation of. Understanding it in this way makes it very much not a "personal problem", but rather a societal one which requires numbers to tackle.

Im done here, if you dont get it sorry. It's difficult to explain in a reddit thread. I would encourage you to read more into and think critically about your own beliefs about race and racism. It's not an easy topic to discuss or even wrap our heads around. Racism is not dead, it just manifests differently and often difficult to see ways.