Is it time to start calling out bad cyclists?

Same logic, innit.

Not really, no. It's a method of transport which I choose to use. The only time it's relevant is whilst I'm cycling, a time when other road users are forced to make a snap judgement call about how to treat me; if/when to pass me, how much room to give me, how fast to pass me etc.

These decisions will be based (hopefully) on their knowledge and understanding of the highway code and in some cases on their previous experiences (both positive and negative) with other cyclists. I'd rather he hadn't just had some cunt on a bike jump a red in front of him or almost knock a granny over on a pedestrian crossing.

It is exactly that logic.

Bigoted Attitudes towards black people all being criminals, Muslims all being terrorists, cyclists all being rogue road users doesn't change by black people stopping committing crimes, Muslims all abandoning terrorism, cyclists all stopping rljing, Dutch people all stopping eating mayonnaise and women getting back in the kitchen. They stop by society deciding that being an ignorant, judgemental bigoted fuck isn't acceptable.