You really think the US government can bomb its own citizens with impunity and not completely destroy their own industrial base that makes bombing citizens possible? The US government would very quickly collapse.
Refineries and factories don't work without people and are exceedingly vulnerable to locals.
At the moment the government with 15% hardcore support is rounding up people on the streets en masse, violating decades of established practices, while harming industrial base that depend on work of those people. And somehow pretty much everyone peacefully goes along with it. Or get occasionally shot.
The US government has made it pretty clear that we're two countries. There's the USA, and "democratic-controlled cesspools". Dropping a bomb on Chicago isn't that nuts when you don't think of Chicago as part of your country.
Fear makes a lot of well intended people comply.