A little late on this one, but I couldn't agree more. I would walk the park with my kids and/or the dogs and have witnessed grown men urinating on the courts, my small children have seen it as well. The women couldn't walk around the park without being treated like a piece of meat on parade as they passed the courts.
As far as race is concerned. I don't think this has anything to do with race at all. This is the only way the park could be made a safe and fun environment for all again.
I would much rather explain the reason for the policy than have them see the reason for the policy. Besides, we got a brand new court, have you seen it! Its great