Honestly, I think it's OK to hold a bit of both beliefs and have that dissonance generate a sort of shame-tinged discomfort.
Violence should, by any rational and reasonable measure, be avoided. But that doesn't mean that violence isn't necessary at very specific points. To be more specific, the threat of violence can be a powerful equaliser when faced with aggressive, unrelenting abuse wrapped in denial.
We still shouldn't glorify it, though. Snitches get stitches in this not related to current events context, because a show of force is sometimes* necessary to establish the veracity of said threat. But we shouldn't forget that murder is murder, even when the murdered was a murderer.
Violence should be avoided, which is why our healthcare system needs to be replaced by a single payer universal system like the rest of the developed world. The current system is violence. social murder is violence.
Exactly! Violence is literally just a thing that exists (I'd argue a sun swallowing a whole planet is pretty violent, for instance), the essence is in the how, when, and why!
When you say something like, violence should be avoided, I have no idea what you mean. Avoided by who? Avoided when? Certainly law enforcement has done a lot of horrible things, but if you think they ought to exist, then you are explicitly endorsing the use of violence.
Avoided by any living thing when it would be directed at or would affect any other living thing. I don't care if you punch your fridge, for instance. I do care if said busted fridge would negatively affect someone else (i.e. someone else having to waste money buying a new one) or you punch something with a pulse. That punch better have a damned good reason, like being aimed at a Nazi. Or a cop. Or a Nazi cop. Oh, who am I kidding, that's pleonastic.
Edit: to further clarify, while I do not agree with the police as an institution, I do think a system of accountability needs to exist, just like in any other game.