All human beings are racist to one degree or another. Meanwhile, the US understands that people need to be restrained by laws, which means our system of government is the most anti-racist in the world. This is especially true after the elimination of Jim Crow laws and the Civil Rights act.
If you are looking for racism, just got to any other country and you will find it in spades. i.e. the whole premise of America being racist is a false premise.
“All human beings are racist to one degree or another. “
Preferring the company of members of your own tribe is not racist.
Shunning the company of those whose tribe is known for violence, drug abuse and theft is also not racist.
Bill Whittle wrote a rant after 9-11 (called “tribes” oddly enough, that might help people to identify their tribe... It’s not a racial thing at all... It’s about values.