@RKasaurus_Rex "it is disrespectful to kneel" "Is" is one of those words you need to be careful with. Value judgment. Prefer "I find". Makes it less objective. To whom is it disrespectful? The flag. Flags don't have feelings. They're bits of cloth. You might take it to represent something. The USA, and all its actions and history. Surely you can see why some people don't have a problem disrespecting that?
"Therefore, you are grouping in black people as racists against themselves who are American and truly American." Well no, I'm not. That's part of my argument for why not kneeling is not disrespectful, though.
"There were serious problems with integration and equality that still have aftershock today". I'm not sure what you mean by aftershock. If you're saying that race is a solved problem in the US, and the conditions he wrote about no longer exist you are ignorant, though. Glance at the figures for life expectancy, unemployment, average length of jail time, pay etc etc by race.
Making an example of just the one cop unfortunate to have been caught on camera this week doesn't go anywhere near far enough to even being to right the wrongs of race in the USA. Pretty much every aspect of life there has to be examined and changed until there is (practically) no difference in stats by race. Otherwise this this just going to happen again and again.