While I'm opposed to Stochastic violence (and honestly not a huge fan of killing anyone we don't have to, which is going to be a long list as it is) I sometimes think the Anarchist assassinations and some of the RSDLP expropriation tactics really did weaken the system over decades, despite the short term PR issues.

Like if you can rob banks, or kill major politicians, then the state can't protect its own ruling class.