Is everything in public life traceable to white supremacy? What should we have instead of civility? Is this just another attempt by the Left to control public debate?
This is just an unconceded premise. Accept this nonsense and then you'll be pulled very quickly into the rabbit hole of leftist dogma.
Civility exist in every civilizations. Seriously, the guys who launched that campaign must be brain dead or totally mad.
I'm not american, I don't get your references. The only time I would concede to bow would be to my future wife, but that's not a real tradition in my country.