Hate to say it, but agreed. This easily turns into a "tragedy of the commons" situation, where a place that used to be special to some is now special to no one.
The general public has proven time and time again that they are incapable of respecting natural areas and following rules and accepted etiquette. We should not be spending money increasing access so the worst of the worst can ruin even more of the country's special places.
The problem with gatekeeping like this is that it also becomes an obstacle to preservation, once the initial gatekeeping has failed. Consider the scenario where climbers descend by rappelling from trees, or using an informal climbers' trail. If sufficient quantities of people use that place, the trees will die and the trails will become significant erosion channels (where the Glacier Trail ascends out of Bomber Basin in Wyoming's Fitzpatrick wilderness is basically a groove in a steep hillside because the traffic it receives far exceeds the maintenance).
Its certainly the case that installing bolted rappel anchors can encourage more people to climb a route, but the presence/absence of bolted belay/rappel anchors is far less of a deterrent than the presence/absence of protection bolts (which is why few people are disputing the the long-standing ban on power drills in wilderness areas). Put another way, if you claim the only reason you've never attempt Rocky Mountain National Park's Casual Route is because you're not good at building anchors, then I would argue you'll have a dangerously hard time with the rest of the route too.
The right balance between access and preservation is a difficult one to strike, but I would argue that land managers should err on the side of enabling more access because it allows them to proactively direct traffic into areas that are more durable to greater traffic, and stave-off potentially preventable accidents like this one:
and this one:
https://gripped.com/201304/rock-climber-dies-on-rappel-from-...
(I've rappelled from the anchor that killed Heung, and the fact that it must be somewhere where tat can be wrapped/tied is, I think, a major factor in why it was so exposed to rockfall. Its also a cautionary tale about backing up and testing tat anchors before fully committing to them, a lesson that people don't seem to learn even in the absence of "fixed" anchors. Consider this accident as well: https://americanalpineclub.org/news/2023/6/7/the-prescriptio...)
The general public has proven time and time again that they are incapable of respecting natural areas and following rules and accepted etiquette. We should not be spending money increasing access so the worst of the worst can ruin even more of the country's special places.