[pydry]

>Why are cities burning over "police murders" and not the War on Drugs or school choice?

Probably because it was the most visible and potent symbol of injustice.

If you're the underdog and you need some sympathy it's a little easier to get it by saying "please stop murdering me in my sleep when I've done nothing wrong" than "please stop putting me in jail just because I like to inject a bit of heroin".

In terms of your broader point, it's not like the two wings of the business party have ever represented the underdog.