Say all you want about how any protest, no matter how peaceful will be vilified (it will) or about how the entire foundation is built on lies (it is), but we still have some real elections coming up, and the imagery of ICE brutalizing someone who's clearly not an immigrant, not violent, not obstructing is much more rhetorically effective than that of armed clashes between government and non-governmental forces.
And as you said, many of us are still convinced that this can be solved at least partially rhetorically and electorally.