They also murder unarmed people with a frequency I'm not comfortable with, so any argument that guns is what makes the police trigger happy has plenty of counter examples of clearly unarmed people getting killed.

Yeah but they always think they have a gun, or so they say. It's not always having a gun pointed at you, it's the threat that it could happen. Very real to American police that keep them on edge, where in other countries that risk is lower so there is less sensitivity to a suspect moving there arm near a pocket or behind their back if they are far away from the officer (which makes it naturally harder to see what they are going for). Not saying it's a good thing, it's just a large contributing factor.

There was recently a video of US police attacking a lady in a wheel chair with a stun gun because she was filming them detaining and being rough with her pregnant daughter.

https://www.youtube.com/watch?v=9piU6_8y61Q

Here's a recent video of a cop throwing a woman to the cement who was in a fight.

https://www.youtube.com/watch?v=DCKu-0oAaOk

Here's a compilation of nearly 1000 incidents of police brutalizing BLM protestors and reporters.

https://www.theguardian.com/us-news/2020/oct/29/us-police-br...

In these incidents the victim was clearly either unarmed or in no way was threatening the police with a firearm. I think that is just yet another excuse the police use to evade prosecution when brutalizing citizens.

This is nothing new, here's the police brutalizing citizens protesting in Chicago in 1968.

https://www.youtube.com/watch?v=3XzdltsTfvE