This was a Critical Mass event, which is why the bicyclists are taking up all of the street as a way to reclaim the streets and protest the lack of safety for riders under usual conditions. It’s not legal, but protests are never useful if they’re fully legal now, are they.
Anecdotal evidence is already more than what you provide yourself idiot
https://www.independent.co.uk/news/uk/crime/just-stop-oil-waterloo-bridge-ambulance-b2443700.html
There ya go. I forget some people don’t know how Google works and need to be spoon fed. But a picture with 0 context or information, you just eat that right up huh? Don’t question something that supports what you want to be true. Lol