I agree we are taking too much risk regarding CWD, I personally would be in favor of laws banning the import of deer genetics across state lines. It's not worth it. I would also be in favor of a minimum size pasture for a high fence deer operation (say 640 acres or so), but I don't think that is practical. My hope/optimism that high fences will be passe at some point comes from the following:
People understand now that high fence, imported genetics is something different than low fence native genetics. It's even advertised ("Holden Pasture Low Fence Monster Bucks!")
A lot of the "elitist"/hardcore hunters are expressing stronger views against high fences on social media and elsewhere.
Generation Y and Millenials would rather not hunt high fences from what I've seen, both because of a nagging ethics dilemma, and:
If you post a picture of a big buck you shot on social media, people are going ask if it was high fence or low fence, and if the answer is high fence, they are going to ridicule/dismiss it.
I think poaching of trophy deer will decline over the next 20 years, because the younger generations just aren't that into having a big rack of questionable provenance on the wall, and if it's poached, you can't post it on social media or you're going to get caught, because there are cameras everywhere. (See 271" buck story, etc.)
There is a nexus between the foodie/organic/sustainable eating/living movement and free range hunting that is growing, Steve Rinella is the most visible "leader" of that movement, but there are a lot of other folks like him putting stuff on youtube, etc. that are way more focused on the meat than the antlers.