Trail abuse is the root problem, but massive overuse is what's magnifying it and making it a crisis. Education and enforcement are the answer, but there's no money in it and so there's no money for it and it just won't happen. The alternatives are a) allow the overuse and abuse to continue, turning everywhere that's popular for offroad travel into a dusty wasteland of trash and trail threading and roll cage speakers, or b) restrict travel and close the places that are hit the hardest.
I don't know the answer. My policy has been to try and spend more time in the places that aren't as popular, and to stop posting about them (which is a whole nuther bucket of worms for another thread). But I'm more of an explorer than a rock crawler so that works for me. If you're a guy that likes driving the same technical trails over and over again, the whole thing is definitely problematic and I don't know the answer. Maybe private pay-to-drive places like what BFE turned into are the future for that sport in the West.