I agree with the spirit of your post. Entirely.
Yes, enforcement is certainly an issue.
However, here in Ontario any moped that has pedals is an e-bike, legally speaking. I’ve seen one with the most limp-twisted effort to qualify as a bike and be therefore street legal. But it still has all the qualities that cause me concern.
What we need is better classifications. A small standing e-scooter that can’t break 15kph shouldn’t be treated the same as a moped with pedals that can get 60kph.
And they people they harm in the process?