“a variety of paintball guns are readily available everywhere.”
“It destroys the anonymity of Antifa or other instigators within the crowd. “
And pretty soon the members of Antifa and other instigators will have paintball guns of their own and be marking everyone possible in the crowd to maintain their anonymity.
Then use UV dye.
And don’t tell anyone.
If law enforcement won’t pick them up, a good few pissed off combat veterans can clean house.
A guy can dream.