Yes. I ride a bike in London, and taxi drivers tend to act on it too.
I’ve been agile enough to avoid the worst, but my bike was smashed more than I can count (I use city-wide bike scheme). I’ve ended in the hospital twice: I  got my front teeth smashed once; I also got my knee busted another time.<p>I am not trivialising threats, just arguing that putting them in context would help <i>solve</i> the issue — a lot more than putting thousands of teenagers in jail just because they didn’t mesure the consequence of their anger.