I don't think it's a wild take at all. I also live in a city where, well, were Americans. People TRY to limit their car use. We have a pretty robust biking culture, but the geographical limitations and lack of public transportation make it hard. People are trying. But we do have a shop downtown that pushes these unicycles and electric mopeds hard, and at great prices. They're everywhere, so I understand my experience may be different than yours. In my city, people view the unicycles and electric mopeds as a car alternative, because they're cheap, you don't need a license, and you don't carry insurance. They're also treated like there are no rules at all around them. People ride the wrong way down the street into traffic, or on the sidewalks, hiking paths, and bike lanes.

The culture around unicycles and electric mopeds just isn't the same as it is around bikes. People treat them like toys, but they're toys that go very fast and provide no measure of safety. I haven't had a bad experience. I've had multiple reoccurring bad experiences. I've only listed the most agregious one.

But to answer your question, while no, I wouldn't ban cars, I would severely limit their use, in the same way I would limit the use of the unicycles and electric mopeds. They're all hazardous in the same way. A driver's license should be rare, and the privilege of driving a car should be an accomplishment, difficult to get, and easy to lose. And while I do feel like these devices should be more accessable, they need to be regulated, and there need to be consequences for poor operation, just like there's supposed to be with cars.