For a state this seems somewhat inevitable, however pretty much all state entities have a duty to use as little violence as possible to get the job done. See European human rights act, Geneva convention etc.
At the end of the day - Violet Gibson wasn’t an employee or representative of any government. She was just someone with mental health issues and a revolver.
Again we come back to Thomas Mair, if your principle is that political violence is fine (again - that’s facism), then the only thing you should find objectionable about him is his politics. He was, after all, following your rules.
Personally I try to follow the “do unto others...” golden rule.
“Kill all others” seems to be the guiding principle of too many people.
> if your principle is that political violence is fine
No, that's not my principle and I've corrected you multiple times.
We don't, though. Violence is legal if it's being carried out by state-sanctioned actors such as the police or army in the course of their duties.