Wow. I agree, I would be mortified if I hit someone, but I’d still like to punch many of them in the face.
If you want to tangle with utterly clueless bicyclists on a nearly minute by minute basis, try driving an actual car around Silver Lake Harbor on Ocracoke Island, NC during high season. Love the place, it’s gorgeous, peaceful and slightly wacky like the best island towns tend to be, but the cyclists are completely out of control.