I’m not sure that your rhetorical style is going to have the effect you are looking for.
Excusing this group of cops (who apparently needed backup to handle this 84 year old guy) by listing out of all the God-awful things cops have done to folks in recent memory looks more like an indictment than a defense.
I think the notion of proportionate response should make a comeback.
The response was proportionate. The old man kept escalating the situation until he got hurt.
You sometimes can’t fix people who are determined to act stupid like mister Wong.