It's gotten to the point that I walked in to some water cooler banter at work the other day, where they were discussing their favorite means of public execution.
It's not that people are accepting of violence. That doesn't just happen. Societies don't suddenly turn violent against the state. This only happens when the state has failed and become violent towards the people. If you're surprised by the rising level of violence toward the state, you haven't been paying attention to the rising violence towards the people.
The US was quite literally founded on the idea that it is an inarguable, fundamental human right to overthrow a tyrannical government. The nice and polite mechanisms for doing this have all been broken, removed, violently suppressed, or outright ignored. When there are no peaceful options left, humans will always revolt with as much violence as is necessary. History shows us this over and over. Violently oppressed societies don't tend to stay that way for long, and they certainly don't become hardline pacifists. They always eventually fight back, or they die.
The rising level of violence from the people at large is a proportional reaction to the increasing level of violence against the people. The level of tyranny has recently upgraded itself from merely an existential threat to the USA as a society, but also an existential threat to the entire damn planet. Of course the people are going to get violent. They feel there's no other choice, because all peaceful options have been exhausted and met with extreme violence.
That's the consensus I see on the street: all nonviolent options have been met with ever-increasingly extreme violence. When all peaceful options are removed, you pick the only one left.
In a historic lens, it's all very unsurprising. This is how revolutions happen. This is what humans have always done when met with tyranny and violent oppression. It's only surprising if you willfully ignore and excuse the tyranny and violence against the people.