Yeah, it's not like statistics totally back this up.

Or that, "someone who has multiple police in his family" could be biased.

Statistics absolutely say that encounters with police in the US are statistically far more dangerous than other developed countries. As far as I know, statistics do not say US police are generally murderous cowards or that an officer in the US is more likely to be morally bankrupt - you are saying that.

Given that police in the US are more likely to encounter dangerous situations than other developed countries [0], it seems plausible that officers in the US enter interactions with a higher level of fear are more likely to do something stupid as a result. Apparently whatever screening and training they get isn't enough because these are the people who are supposed to be able to handle these exact situations.

[0] https://www.vox.com/cards/police-brutality-shootings-us/us-p...