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.
Ride your bike in the park or stay on the sidewalk. Streets are made and paid for by motor vehicle’s.
Streets are paid through tax dollars. Often income, property, and sales tax. Not from car or gasoline tax. :-)
Get fucked.
It’s illegal where I live to ride my bike on a sidewalk (US)
Meanwhile pedestrians get angry at me for riding on the side walk and tell me to ride in the road, there’s no winning.
Fuck you.