I have 4 conventional bikes (2 carbon, one titanium and a steel one), I enjoy the challenge of doing a long hard ride in the hills and coming back absolutely wasted then enjoy a beer or two in the evening. I also have an e-bike (and yes I've been told I'm cheating just once, the rider was joking, but I didn't get a chance to point out that just the day beforeI had ridden 150 miles unassisted to Bala and area then back home again! I was on the ebike instead of using a car, not instead of cycling. The cheats are the ones in the car doing 1 mile journeys for a bag of sugar
).
Anyway, many people don't enjoy cycling in the way that I do (see bit above about coming home ruined), but if from I am seeing is right, in 20 years there will be a vanishingly small number of cyclists who prefer to go unassisted and get the fitness benefits. I see it as a bit like schoolkids (the so called playstation generation) who have measurably lower fitness levels than the last generation. It's a downward spiral, we'll just get less fit as time goes by. And yeah yeah, I know the well worn trotted out "but you can still get a good workout on an ebike" line, but I'm not convinced most ebikers are riding in such a way.
Ride what you want where you want,
just don't derestrict it