Is it time to start calling out bad cyclists?

I used to try this but what you should do is just ride with the car traffic in the road. Give it some beans and pace yourself with the cars.

I'd rather gently annoy and slow down some traffic than get knocked down and then rolled over by a bunch of awful cyclists in a tiny not fit for purpose cycle lane.

Totally agree.
I don't really like backstreets either as I've found I'm more likely to get swiped by a car turning or entering.