Why would generators be an issue? If a campground offers electricty, rv'ers shouldn't be running their generators. Unless of coures you have some cheap a$$ 45'ter camping in a boondocking
They want everything but don't want to pay for it.
Now if you don't like the large over the top rv's as neighbors I can understand, but would suggest you find a less established campground to stay in.
Having owned and operated a rv park, our tent area was not accessible to any vehicle. So it wouldn't have been an issue. And we didn't get a lot of tenters anyway because we were a rv park. But we did have sites with power only for those who wanted to be away from the big boys!
But had our tent sites been as you describe for the campground your staying at, I too would have deined you for the reasons given above......... Just for the comfort of a tenter had we ever had any.........