Apparently, that young white man's parents never had "the talk" with him.
So in case he looks in here someday, this is for him.
"The Talk":
https://www.takimag.com/article/the_talk_nonblack_version_john_derbyshire/excerpt:
These differences are magnified by the hostility many blacks feel toward whites. Thus, while black-on-black behavior is more antisocial in the average than is white-on-white behavior, average black-on-white behavior is a degree more antisocial yet.