I thought to myself: no we won’t. Even if there were brigades of leftist militias and soldiers, it’s not enough not should it be.

Correct

Revolutions can always be non-violent or quick coups by rival factions of society against the state

Usually incorrect.

The only time there are ever "quick coups" is when it's done or supported by a nation's military and police and the force behind it is unmatched internally in terms of strength. The chances of the left in the West ever being in that position are slim. I've also never seen a non-violent revolution succeed. Even in India, there was a bunch of violence.

I thought to myself: no we won’t.

Yea, ok, but what if you need to drone strike a childrens hospital? How are you gonna do that without the help of US vets?

There's no such thing as a non violent revolution. And if you think that's an actual path than you are not being realistic at all