From the other responses here, I like the 'its the guns' answer the best, as it has likely led to police treating every interaction as a possible life and death

From the other responses here, I like the 'its the guns' answer the best, as it has likely led to police treating every interaction as a possible life and death scenario. This is likely to be it. But, there's a possible other culprit too, that I never noticed before the recent divisions in the populace due to politics, and that is the politization of policing. Now, I could be conflating cause and effect here, but wouldn't it be interesting if the reason we are culturally nervous of the police is that we have been told to be that way by mainstream influences. Just a thought, and I'm happy to have it all backwards.