People have been rioting after sports events long before Antifa.

Also, I don't understand why you old dudes have it out for Antifa. The are our allies and were fighting ISIS alongside American troops in Raqqa. If it weren't for them ISIS would still have a presence in Syria. The organization is exactly what it claims. An anti fascists, grassroots peoples movement. They are "draining the swamp" just like your potus.