Not suggesting I have any more knowledge of the truth than you, but for that post, there is this response:
https://www.reddit.com/r/washingtond..._of_dc_police/
The common theme for a lot of our problems is still "lack of trust" - whether its trusting leaders, trusting media, trusting richer/poorer people, or trusting people who are different to yourself [whether by skin color, language spoken, or political/gender/sexuality/etc preference]. We're still primal and tribal, even though we imagine ourselves to be civilized and past that.
It's probably not a stretch to say some groups of people are exploiting this for their own advantage, and it really depends where you sit as to who you suspect those groups of people are.
I think it's a bit much to say "Trump has killed 100 000" - would you also say "Jacinda has killed 22 people"?