The thing with places like Arches and most parks (at least in Utah) is 99.99% of people stay on the trails. Yeah, Arches is small and you can dayhike to most places, but it's an easy bet that most of Arches sees less traffic than a lot of Escalante outside of the Lower East Side stuff. I did a ~60 mile loop around Arches several years ago and saw zero people and zero footprints (and didn't even do much in the Lost Spring system, which is probably the best backpacking area in the park). Sure I could have dayhiked to a lot of those places but dayhiking is kinda lame imo and I wanted to see if it was possible to have a 'wilderness' experience in a place I'd written off as ruined. It was a super rewarding experience and it has some super cool little corners. Same is true in Capitol Reef, etc.
As far as increasing regulations, most backpackers might be thoughtful folks but there are a lot of morons out there (and a lot of ignorance, especially in fragile desert ecosystems). There's a reason they're requiring wag bags in Needles now. I had to pass through a short section of Coyote Gulch a couple years ago on a big trip and the amount of TP I saw in like two miles was insane, and that's a canyon with a fing toilet in the canyon. In Olympic NP that rule had to happen because people don't keep clean camps. In Grand Canyon, when you apply for a permit for a big trip, they have to send you a letter telling you you are probably going to die because they have to spend the money and human resources to rescue people every single damn day down there.
I guess my main point is increased use does require management and just because there's heavy use in a concentrated area doesn't mean that adjacent areas can't be awesome. I'll speak for myself that making a conscious decision to try to tone down my curmudgeonly instincts and keep an open mind has allowed me to find some of the best and least traveled wilderness anywhere over the last couple years (much of it around Glen Canyon, another 'ruined' place) as well as enjoy the busier places too (had a great trip last fall in Olympic with the fam actually).