i think a lot of us feel the problems are so entrenched, and any lower bar to change so inaccessible, nothing short of violence will create any significant change.
given how difficult it would be to (for example) change our constitution or end corporate political contributions through non-violent means, what’s left? every part of our current system is self-reinforcing on the national level.
it doesn’t help that the sentimental commitment to “our founding fathers” is equivalent to something like religious faith (see - christofascism, american nationalism) and/or national identity (because we don’t have any other).