I've been in the army and there's no better place to force immersion with other races and learn to accept differences and get along with people.
The biggest problem I have these days is the narrative that only whites can be racist, I've met black racists who are on par with anything the Caucasian race has to offer.
How it is that if a white said "we're smarter, we have a better work ethic, etc." is racist, but when a black says we jump higher, we're better athletes, we do the work others won't do" is NOT racist, it's just pointing out their strengths.
A switch got flipped, whites were told to get to the back of the bus, accept your new place in society and if you do want any respect as a white man you must be gay, trans, or subserviant to your butch wife while making sure everyone knows you vote democrat.