No, it's not. There is a specific legal carve out for "bikes" in the US where anything with an electric motor under 750 W is considered legally a "bike". It also has to comply with the class I, II, or III rules to meet the definition of a "bike" for legal use on public roadways (or paths and, depending on the jurisdiction, sidewalks), but I was simplifying since that's less commonly enforced.

Your argument is ridiculous. I've already stated that there are two different speed limits for paths and bike lanes. Clearly I comprehend the difference between the maximum speed possible on the vehicle and what the location is speed limited to...e.g., a class II maintaining 15 mph on a shared use path despite being capable of 20 mph. None of that flawed logic "I'll do what I want" changes the laws that only enable legal "bikes", mobility assistance devices, parks vehicles, pedestrians, etc. to use shared use paths. Moped and motorcycles are prohibited unless it's a specifically designated motor sports path--in which case, be my guest, since you pay for the tax dollars to maintain the path for the much heavier, higher speed vehicles, policing, and accident issues required.

Otherwise, your 1000 W, 2000 W, etc. dirt bike, moped, motorcycle--whatever you want to call it is not a bike legally. It is not entitled to use the roadways without licensing because it's not a bike. I don't make the rules. Go argue with your legislator if you don't like it.