It's not that hard to do. I ride in the rain and fog here in SF (the city under discussion), but you need dry pants. The real thing is that this is not an AV vs. ebike thing. Almost all people who ride bikes/ebikes here are pro-AV. It's mostly people not from SF and people who don't ride who are anti-AV.
AVs are so much safer and predictable than human drivers.
I'd be cautious, considering Teslas in "self driving" have a nasty habit of running over single track vehicles (motorcycles and bicycles) because their systems don't recognize that anything narrower than a car exists.
AVs are so much safer and predictable than human drivers.