I have an e bike. Love it! It's my daily commuter.
People in cars are often too impatient and callously ambivalent about anyone's safety who's not in a car. Idk what it is about hopping behind a wheel that makes people so impatient and mean spirited. I mean they're driving around in an environment so comfortable and convenient it would make the pharos of old green with envy.
The infrastructure for biking, if extant at all, is often jammed in as an afterthought and far less useful, and far more dangerous than your average motorist may realize.
Also there's a segment of my fellow bikers who bike not because they prefer it to automobiles, but because they're not functional enough to own an auto, valid license, insurance, etc. This segment of the biking community all too often gives the rest of us a bad look.
And yes, I think a bit of well thought out regulation and enforcement may be in order.