You're not wrong. We did drive, and it was part of our summer vacation. Interestingly we did discuss exactly that when we were there - how much we would like to be be able to ride out the back of our house and onto the hill. But currently my research work is in Cambridge and the decent hills are far far away. I am working on changing that. Train to Brighton gets us to the South Downs. though, which is good. I regret I have a job which in the past has involved a lot of air travel. I've deliberately cut that right down, and very seldom travel globally for leisure. We now alsolutely restrict holidays to UK and Europe now. Likewise I designed and built a low energy house for the family. Trying to do something towards making it all better. I guess I am not arguing that E-bikes should not exist, I am focussing on their proliferation and heavy promotion and adoption - those people who could just as easily have a non-E-bike - i.e. the E-bikes which would probably be easily substituted by a pedal-yourself bike - and am not at ease with all the heavy promotion of E bikes.
For the purposes of discussion, I think we could divide our environmental impacts into three categories (or 'ideal types'):
1) Unavoidable consequences of our existence: we need to eat, breathe, etc., and inevitably these things have environmental consequences. We can't do much to change these.
2) Surplus impacts that are consequences of the societies we live in, e.g. it's not a fact of human existence that people need cars but it's a product of our societies that we often need cars to get to work, to transport children to school, etc. Human needs can be met in various ways but the ways they're met in modern societies are often especially damaging. Individuals' options are set by their social environment; there's not much that isolated individuals can do to change them: it requires social change.
3) Gratuitous impacts, e.g. people buying e-bikes just because they're lazy, flights abroad just for sight-seeing, etc. Individuals can certainly change those behaviours on their own.
In practice, all three might be blended in one action, e.g. my family needs to eat (unavoidable); because I'm in a modern society I drive to the supermarket (socially constructed impact); and if I'm a selfish, wealthy, and environmentally irresponsible individual, I might drive there in my Ferrari (gratuitous) instead of something more fuel-efficient. But distinguishing between them at least highlights what individuals can change, what requires social change, and what we can't really change.
I think that the focus of your complaint regarding e-bikes is really centred on their gratuitous use and that's relatively uncontroversial. Where possible, using an e-bike instead of a car is also relatively uncontroversial, if it's a more environmentally friendly way to cope with the demands modern societies have placed on us. Why the bike industry is promoting e-bikes no doubt has much to do with modern capitalism, and that's a much larger debate, but I think it's fair to say that changing the conditions under which they operate is beyond the scope of a single company and probably a single industry. Again, it requires social change to break the discrepancy between what's in individuals' immediate interests and what's in humanity's longer term interests. I wouldn't hold your breath while waiting for change.