>>As a pedestrian, you terrify and bully me.

I clearly said I slow down or dismount when I'm near pedestrians. If you still feel terrified or bullied, I think that's a personal problem.

>>As a driver managing turns, you're traveling at a very different speed than the people I'm expecting on the sidewalk which makes turning safely much more difficult.

Bikers who do this deserve absolutely no sympathy. The safe thing to do when biking on sidewalks is to dismount as you arrive at an intersection, even if the pedestrian light is green. Then you cross the intersection as a pedestrian, i.e. by walking.