We had bullying and race issues when I hit public high school, but they're almost quaint in comparison to the near race war level shit we have nonstop now. Black kids would sometimes bully white kids, but much like white kids, they were pretty selective of doing it to presumable lolcows and not just race-motivated. In fact, ethnicities usually stuck to bullying their own kind. You had to stand out seriously to become a lolcow to basically everyone.
The closest to actual physical bullying, other than the usual school fights, was a ridiculous practice called the "ear flick." Basically, curl your index finger against your thumb, then do a one-inch punch to their earlobe. Snap it real hard, make it hurt. For bonus points, do both ears. Everyone did this to everyone, but a specific twist the black kids had on it was two of them would get behind you and both ear flick you. Then when you turned around, they'd both deny doing it. Then they'd say you were only accusing them because they're black, while grinning ear to ear as you seethed. And I couldn't even complain without being incredibly hypocritical, because I'd had a hand in starting this fad and even came up with the "three point" rule where the coveted double ear flick got you an extra point, and the general rule that no matter how obvious it was that you did it, you always denied it, and so did everyone who saw you do it.
This is almost quaint, but I will note that shit actually hurt when done right, and the most perpetual victims had this shit done to them multiple times a day sometimes for weeks on end. You'd lose points for "fouls" like actually just slapping someone's ear with an open palm because that could actually hurt someone.