Anyone who thinks violent protests are new to this country needs to open a book or watch a documentary. This country isn't spiraling into some mad max vortex of anarchy. We've had horrific and misguided violence in the streets since the country was founded, we just see all of this front and center with modern news instead of reading about it in some side column in a newspaper.
As far as "standing up for the cops"--the establishment and the cops themselves seem to be doing very well standing up for themselves no matter how many black folks they choke out or shoot in the back. I wouldn't worry about them.
Anyone not voting for Biden is a half vote for Trump at the least. Will that, after four years, get you closer to what you are after? All I know is that it will be another four years of climate change denial, a couple more Kavanaughs added to the Supreme Court, and more tearing down of every single government agency that might actually be needed. I'm not sure how many environmental protection regulations are actually left, but they won't be there long! Let me guess, once it all really breaks people will come to their senses and elect a progressive. What a childish, I want it my way or I'm taking by ball and going home attitude. Unless you are ultra-rich, our lives are full of lesser-evil compromises, why should politics be any different?