Because in the US, when two groups or people have a disagreement and the cops show up, one group is assumed to be law-abiding by default and the other is assumed to be not. Police-initiated violence follows.
Some people like this outcome, some do not, and think it's unfair, especially when the latter group was there first/longer.
it's a race to the bottom
Because the media doesn't want to draw attention to wealth inequality, it's pretty straight forward.