I wonder about electric bikes sharing infrastructure with "manual" bikes. At what point is it just an electric motorcycle and should move to the road. There's

I wonder about electric bikes sharing infrastructure with "manual" bikes. At what point is it just an electric motorcycle and should move to the road. There's a wide range of electric bikes from just pedal assist, to some you can just cruise, no pedaling. Speed difference between the normal bike rider and the electric bike rider introduces risks to using that bike infrastructure. I've personally had electric bikes fly past me on mixed use trails, and I'm not a slow cyclist. I think it may be too easy to reach unsafe speeds. It's odd to me that on trails where motorized vehicles aren't permitted, somehow electric bikes get a pass.