No, they are not motorcycles. They are bicycles with an electric support.
They are motorcycles with minimal pedal assistance from the rider, which serves as a fig leaf.
How much power do you think a bicycle rider needs for riding at a speed of 25 km/h? How much power would he or she need for riding with a speed of 125 km/?
@whosepoopisonmybutt
I think we can stop right here. I don't doubt that using a low-powered electric motorcycle may be a more environmentally friendly method of transportation than using a high-powered ICE motorcycle, if it is suitable for the purpose. But that doesn't make it a muscle-powered bicycle, and it doesn't make it equivalent to and as environmentally friendly as a muscle-powered bicycle.
O RLY? I commuted 8 miles each way for decades. It was pretty tough at first. But the great thing about muscle-powered bikes is that the engine gets stronger over time with heavy use.