Nope. Plain, old black Thug Culture.
Those NO bars do try to close early after black college or “Greek” events but are not allowed to. I know because I was in one several years ago and the bartender told us to get off the street - it was close to 11pm. They would have to stay open by law and suffer the violence.
Any hotelier will tell you that this is the worst weekend of the year for them. Hotel rooms are systematically destroyed, excessive violence,etc. Likewise restaurant owners and wait staff hate this weekend. Walkoffs, no tips, behaviour about as you’d expect.