This is the only thing I will post on this matter. That and if you actually believe it's not possible for a person who is non-white to be racist you are one of the dumbest people out there, even acknowledging you is a waste of time.
Merriam 1. a belief that race is the primary determinant of human traits and capacities and that racial differences produce an inherent superiority of a particular race
2. a: a doctrine or political program based on the assumption of racism and designed to execute its principles b: a political or social system founded on racism
3. racial prejudice or discrimination
Cambridge: racist noun [ C ] a person who believes that some races are better than others, or who acts unfairly to someone because of his or her race
Oxford: racist NOUN A person who shows or feels discrimination or prejudice against people of other races, or who believes that a particular race is superior to another.
ADJECTIVE Showing or feeling discrimination or prejudice against people of other races, or believing that a particular race is superior to another.
How many non-whites were involved in creating those definitions?