I know of a lot of classified "Non-motorized" trails here in Idaho where I can ride my MTB in and it is very hard..like it takes a lot of effort to get through really sandy soft areas, up and down creeks, etc, all with a pack with camp in it on. Put a motor on a bike and do the same 5-10 mile trail and it's super easy to access. There's countless trails that are this same way. Without any of the rhetoric, the bottom line is people are getting lazier and lazier so now you can use a motor to go on "Non-motorized" trails. Not sure why the e-bikers couldn't just be happy using the motorcycle trails, which there are thousands of...but for some reason they have pushed and pushed to gain access to the "non-motorized" as well...
easy to see that it WILL change things for people who use their own fitness and suffering to get into areas which were previously restricted to people in shape for it.