Honestly, if you fear the EUC strawman (for pedestrians) and not the giant 3000lb+ metal boxes that can go 100mph+ standard (for decades) that's a weird hill to live on. The momentum isn't even comparable.

Just about anything around you is going to provide some protection from a stray EUC rider (a wooden fence, a bus shelter, a cemented mailbox), a car can barrel through a fucking brick wall. Yeah, EUC riders are probably more in-danger but they also probably are going to pass out on the pavement rather than on their accelerator. I'm guessing you'll say some cars fix that (maybe if the surveillance tech is working right), but yeah not that used car they're actually in because cars are expensive.

Also from what I see a medium-weight EUC is 60lbs and heavy is 80lbs, so I imagine a pedestrian crash with one would mostly result in leg/foot breaks. Assuming standing adult and no sweet jumps.

that thing won't reach deadly speeds, especially if you wear protection.

the risk that riding that gives is from other cars.

even with all the elaborate safety standards, cars are more dangerous than cheap bikes who's only safety are helmets.

A bit telling how you mentioned care safety standards that are only for the driver and not the people around the car. Maybe think of other people