This is really sad. I'm not from the Mission but I used to play pickup here all the time. Never had any problems. I hope they all just shut up and played together.
Agree it is really sad. The guy who held the permit was entitled, condescending, and insulting. The tall guy in the neighbourhood was very patient and reasonable. I don't understand why the dropbox guys didn't want to play games with the neighbourhood kids. It is a good opportunity to interact with people from different backgrounds.
American society is getting more polarized.