The problem with usage of "prejudice," as you define it here, is that you are attributing it to a BEHAVIOR. "Prejudice" implies attitude or belief, not action.

It's much more realistic and accurate to examine "racism" through the lens of three basic subcategories:

SYSTEMIC RACISM -- which you define, very clearly, here in this piece; how White people are the beneficiaries of (governmentally-supported) systems built on white supremacy at the expense of BIPOC lives.

SOCIAL RACISM -- mistreatment (including, but not limited to, violence and aggression) based on targeting another person due to their racial categorization per se. White people and People of Color can be both the transgressors and targets of this form of racism.

CULTURAL RACISM -- an extrapolation of "social racism," where the mistreatment gets heightened and intensified based on groupthink and peer pressure. Group identities override the individual's sovereignty when dealing with violence, abuse, or harassment that is racially-motivated. Again, White people and People of Color can be both the transgressors and targets, here.

When you possess racially-charged attitudes about someone else based on what racial group they appear to fall into, that's prejudice. Once you turn that prejudice into something actionable or behavioral, it very quickly morphs past the realm of bigotry, and straight into, ultimately, (an iteration of) racism.