I'll say it again:
Speed limit not Class limit!
Just as it is with any other vehicle that rides on tera firma.
You are 100% correct! The lawmakers do not have the cognitive ability to realize that nothing else is going to work long term. Sadly we have People for Bikes and and other bike advocacy groups thinking the EU-based Class 1-3 system is model legislation. It's not even consistent with the federal definition entirely which they imply it is.
I really get a laugh out of the fact that every state feels they need to prove something and create their own ebike regulations when they should entirely focus on usage of bikes and ebikes and let the federal law define what a CPSC regulated bike and ebike is.
I literally had a conversation with one of the 4 law makers that pushed the Class 1-3 regulations thru in 4 months in Colorado (mainly to get Haibike to move their US headquarters here - they want the same regulations in EU and US for economies of scale of coarse). I'm sorry to say I was not impressed with his knowledge of the technology or the US federal ebike definition.
Bottom line is we all should ride responsibly and let the regulations eventually work out. I just don't want the mamby-pambies winning and setting all ebike assist limits at 25kph or they need to be licensed and insured (obviously DMV and insurance companies will not agree because they want their pensions increased on the backs of ebike riders).