I suspect this divergence comes from people who have internalized the 1960s civil rights movement view, and whose chief concern is the government protecting minorities from the majority. Meanwhile, the more traditional Anglo-american view is chiefly concerned with protecting the majority from the government.
From what I see and know, among conservative supporters violence against police is strongly condemned and to be harshly punished, as is any form of protest that is arguably the slightest bit disruptive.
> chiefly concerned with protecting the majority from the government.
In fact, by their actions, they make the government - police and prosecutors - free to abuse people in almost any way with no reprocussions. One of the latest Trump executive orders even tells the DoJ to go after any legal authority prosecuting police.
And by their actions, they are chiefly concerned with using the government to persecute and suppress anyone they disagree with.
> 60s ... traditional
It's a nice tactic to try to attribute those who disagree to a passing fancy, and your beliefs to 'tradition'.