I want them on the sidewalks, too. An automobile is far deadlier to a bicycle than a bicycle is to a pedestrian.
Bicycles do not belong on the sidewalk, period. Maybe small children still on training wheels but that’s about it.
Dead is dead. Unless road conditions are very extreme, providing no right side clearance or highway speeds, bikes belong where they have been for 100 years; on the road with cars. Hazards presented by pedestrians are far more numerous; unpredictability and dogs on leashes being just a few.
Even designated bike paths, on a nice summer day, are far more hazardous than the shoulder of the adjacent road. I'll take my chances with a driver that drives all the time any day, over some lard butt that just pulled his bike out of the garage for the first time all year.
I want them on the sidewalk too and ride on the sidewalk whenever I can. I am terrified riding on the roadway.