I was at a bike event a couple of weeks ago and chatting to a guy who described himself as just like a car driver, but on a bike. He uses it to get to work, short distance socials, small shopping trips. That is going to be the market for e-bikes on the whole, and encouraging people to become part of that group is what most of our town centre cycling infrastructure is about. They have, hereabouts at least, been taken up massively by food delivery bikes: when the law catches up with e-scooters, the two will fill roughly the same niche.
I contrasted myself to him as a jogger, who aims to do occasional marathons, but on a bike. In that culture, e-bikes that are road-bike style are occasionally appearing: I know that some of the guys in my Sunday morning ride group have one that they use if riding in much hillier areas than my part of the country, and one was used on the club ride the other week (a member even older than me), almost as a social experiment, but was essentially a heavier bike to push around apart from on the small number of hills when it was advantageous.
I can see younger people who are use an e-bike/e-scooter as a mini-city-car being encouraged by that to get a "real" bike, having developed a taste for that type of openness. And if the e-bike can open the joys of country lane cycling to more people, I see that as a good thing: they do not have to reduce the exercise element to zero, and maybe will make bike outings as a family (some self-propelled, some battery-assisted) a more realistic option for some (admittedly, not a very cheap option). From such beginnings, can the interests of the children grow to the competitive years.
So no, I don't see the existence of e-bikes as a negative at all. (Now: the way food delivery guys ride them: that's a different issue)