The issue should really be about kinetic energy and the likelihood of collisions.

With cycles (including e-bikes), the rider is exposed and is likely to get hurt during a collision and this provides a feedback loop so that experienced riders are likely to take care and be very attentive. Cars don't have this feedback loop and are also orders of magnitude heavier, so it's really a different situation.

It's bizarre to require a slower speed limit for a much lighter vehicle, when logic dictates that cars should have the much slower speed limit.

> We should congratulate cyclist on becoming fully fledged (oppressed) road users.

As a matter of record, the first modern roads were built specifically for and by cyclists: https://www.cyclinguk.org/cycle/roads-built-cars