I can understand your unease with visiting the US, and I certainly don't wish to dismiss your valid concerns, but I think tragic and hateful events like this can also serve to highlight the good in people.

It should be noted that one of the injured was some random white dude who tried to pursue the gunman.

Again, I understand why you feel the way you do and I'm not dismissing those concerns, but there are a lot of wonderful people in the US as well.