There's absolutely a meaningful divide along party-political lines on confidence in the police and belief that they are doing a good job in protecting the population from crime.
https://www.pewresearch.org/fact-tank/2017/01/13/republicans...
https://www.pewresearch.org/fact-tank/2017/01/13/republicans...
US politics are conservative. The "left" is middling-at-best.
There's also the concern of how police react to the "defund" movement. There have been a ton of accusations that the police slow down on purpose when their budgets get threatened because an increase in visible "crime" (in quotes because I don't think homelessness should be criminalized, but seems to be the underlying factor of a lot of what gets called crime near where I live) gets all sorts of people to call for an increase in funding.
Biden literally pushed crime bills way back when. And I don’t have any hope that the democrats will pass any police reform given they control Congress and the executive. There’s such easy reform too that could be done by executive order like stopping police from purchasing military equipment or linking funding to reporting police violence stats.