The lower weight and size also has significant external benefits, because roads need less maintenance and don't need to be as big (that means less taxes for the owning classes in the back).

The initial cost too. U can get an ebike for like 1500€ but u gotta pay like 60000€ or more for an electric car. Also insurance, maintainance, parking, etc

My old shitty car cost 2,5 times as much as my really nice ebike. Both bought used. I used to pay around 200€ a month for fuel and there is also insurance. My ebike right now costs me about a handful of euros in fuel each month and I don't have to take extra time for exercise out of my day. So a hundred times more efficient isn't even that high.

Maybe its a bit much but as i said in the other reply, you need:

• a parking space
• insurance
• maintainance
• eventually very costly battery replacement

All of these are either not necessaey or muuuch cheaper for bikes. These are also recurring costs that together could pay for a whole new e bike every few months.

Why wouldn't an ebike be riding in traffic?

100 is a bit much, a good ebike can cost several thousands

Right, but it has much lower ongoing costs (less electricity or fuel, no/cheap insurance, no registration, minimal maintenance). 100 times cheaper is probably a bit hyperbolic, but not by that much.