You could also look at other examples - protestors against Israel's actions in Gaza doing nazi salutes, for instance, or singing anti-semitic songs.
The other canonnical example is during lockdown, the treatment given to women protesting the murder of Sarah Everard vs BLM protestors.
So in a riot of vastly smaller scale, there 27 arrests and 4 charged.
> protestors against Israel's actions in Gaza doing nazi salutes, for instance
In a protest that was overwhelmingly peaceful, there were 4 arrests, including of someone who did a nazi salute: https://www.mylondon.news/news/three-arrested-after-nazi-sal... . And if we compare it to the delightful things we're seeing in far-right protests:
- https://x.com/AntiRacismDay/status/1819790189369143691
- https://x.com/StanCollymore/status/1819451687566004237
The responses look proportionate to the behaviour.