1) The priorities of the president and other elected officials reflect opinion polls, which show the priorities of their voters. It's way less popular among most (D) voters than they thought it was, so they are dropping it from their agenda like a rock. That's not perception, that's reality.

2) Black and Brown voters want their neighborhoods to be safe, so they voted for the person who promised to prioritize public safety. The reasons why it happened are simple and obvious to everyone not living in a bubble.

3/4) You clearly spend too much time on the internet and engage in too much conspiratorial thinking. It's a movement or a slogan, it exists, reactionary movements are still movements. It's the slogan people who took the side of the police in the middle of last year's controversies and cultural upheaval, there's nothing conspiratorial or complicated about it. Opposing reform is actually, a really concrete set of policy positions.