@HeavenlyPossum I can think of one incident that has to be called "violent protest". Here in Aotearoa/New Zealand we had our Parliament grounds occupied by various "cooker" groups. They were a mix of anti-vaccination, anti-lockdown (though we weren't in lockdown by then) and ant-government. Many of them did not like that we had a female prime minister.
The occupation went on fer weeks because the police took a gentle approach. The protesters were noted for all kinds of disruption such as harassing members of the public for wearing masks (kids on their way to school etc).
Eventually the police said they had to go and deployed a line with riot shields. IIRC they were not otherwise armed. Our police do not normally carry guns. Also it was a small force, outnumbered, I think this was deliberate. Protesters pulled up paving stones and pelted the police. There were injuries. Some of them set fire to a nearby children's playground. I call this a violent protest.