From the experience of the Czech republic:
Most of the trains are run by private companies on behalf of the regional governments (chosen in a public competition). This has increased the quality of trains, while price (and, sadly, timetables) remains regulated by the region.
On the major lines, private companies operate also on their own, and even though the last-minute-in-rush-hour ticket are expensive, you can travel cheaply if you book it in advance and in less used hours.
(Also, until a year ago, one of the companies found a way how to misuse the governments' discounts, making tickets for students&seniors practically costless/paid by state, but that's another story.)
There Are many ecosystems that hardly depend on human activity. Fields And cities, but also fragile places as orchid maedows.
In some parts of world (Europe definitelly), these ecosystems evolved right after the end of the last ice age, there was no interregnum of "Wild forests" (with this part I'm not so sure, but if it weren't true, It doesn't affect the main argument).
Without humans, these ecosystems would rapidly get destroyed by bushes And forests, part of the manifold world would have gone.
And yes, I aknowledge that were destroing these ecosystems too, by industrialized agronomy.
And I understand the feeling nature=forests without human disturbing, but it's simply not the whole picture.
You seem to be mixing up your unhappyness of e-cyclist riding on the sidewalks and oppinion about healthy benefits of a normal bicycle.
Aso for the second, consider that riding an e-bicycle is still healthier than not riding at all. (Especially at 45 mph = 70 kmph. The electric support is restricted up to 25 kmph. Are your shure about that 45 mph?)
Antic roman hope.