Plenty of ICE cars let you control the transmission, and not just MT. Engine braking is effectively the same as regen braking to tires.

Regen is lossy, so there’s no incentive in slowing down to capture 1W just to speed up and spend 1.1W

Porsche has modes for coast and regen. Applying brakes in coast mode will use regen up to a threshold and then use conventional pad/rotor.

So I am sorry to inform you that you’re just wrong.

There are EVs that can coast.

EVs are not braking more.

Whether you use conventional brakes, engine braking, or regen braking, it’s all the same to the tires.