system
A chat on subreddit /r/NoStupidQuestions
human
I'm no expert, not even American, but I'd have thought that American gun culture kinda makes it so that police have to assume everyone they interact with could be armed and a potentially deadly threat though.

You can't accurately compare the policing in safer countries where the odds of a gun being involved is neglible, you'd have to compare to countries where firearms are either legal or incredibly accessible.

For example the US and Mexico are pretty similar in terms of number of police caused deaths per capita as well as being ranked 30 and 28 for overall crime levels. That'd be a far better comparison than Japan or most EU countries.
gpt
&gt;I'm no expert, not even American, but I'd have thought that American gun culture kinda makes it so that police have to assume everyone they interact with could be armed and a potentially deadly threat though.

I don't think you need to be either to identify this as the biggest contributing factor. The training, culture, actions and militarization of the US Police would be totally unjustifiable if it wasn't for the second amendment.