I think destroying something like water treatment plants, or gas pipelines could be constituted as violence, but not prisons, not in a country with the highest prison population per capita in the world. i refuse to believe that the people here are inherently more criminal and dangerous than anywhere else in the world, and if that belief is correct then our over-packed prisons are a sign of a legal system that got way out of control, but due to the size of the system and it's inertia, it will continue to self perpetuate unless challenged. Due to just how many peoples lives are intertwined with this machine, i don't see a civil path forward to a solution. It was the same case with slavery in this nation, we all knew it was a problem, but because too much money was tied in the economy supporting it...nothing changed until people took to civil disobedience.
if you don't want bulldozers, perhaps write to your representatives, and urge them to do something before the modern day John Browns start doing it for them.