Diversity isn't so much the issue as the fact that they hate America. If we brought people from everywhere that want to be american and be part of this country it wouldn't matter one way or the other. The problem is the left has destroyed what used to bring us all together and insist that they fill a crayon box with one of everything with no regard to an underlying framework.

My best example is a mixed race Church or even the military, everyone is there to accomplish the same thing (worship God, or kill our enemies). That foundation makes diversity something between a non issue and a net benefit. Just throw 50 people from dramatically different backgrounds in a room and expect them to get along with no goals, you're gonna have a bad time.