While the bike purist may not distinguish an e-bike from a motor bike from a moped, in many places in the US, the law does. E-bikes can basically go anywhere a bike can go, and that may work out for the best. I don't ride an e-bike, but I'm not opposed to them. What I do love is bike infrastructure, like bike parking in my city, or the bike/ped paths around the city, or longer trails like the GAP. If e-bikes make these things more accessible to more people, then more money will be put into them. Seems like a good thing to me.
Of course then you raise the ire of anyone who thinks that their way of riding the only way. On the other hand, I ride my bike daily in a place where almost everyone drives, so I guess if I gave two figs about what other people thought of my transportation choices, I wouldn't ride at all.
Now let's talk about the real posers: those weirdos with 3 wheels. It's called a BI-cycle! What a bunch of cheaters. ;-)