From the USFS website: "Gifford Pinchot, first Chief of the Forest Service, summed up the mission of the Forest Service: "to provide the greatest amount of good for the greatest amount of people in the long run."
Lots of hikers using the forest for healthy recreation is good for the economy, and it's good for the physical and mental health of the hikers. Overall, this is a good thing. And all these people hiking is the current reality, and it's not going to change. It won't solve any problems to hold up our hands and say "not happening, not happening" and imagine that we can turn the clock back to 1980.
What's lacking is management, which costs money. Need more parking lots, bathrooms, trailhead educators, rangers, trail maintenance crews, etc. All costs money, so it doesn't get done until it's an emergency. Same exact problem here in the Adirondacks.
It's just like a traffic light that's needed at a suburban intersection, which doesn't get installed until someone gets killed. Sadly, I expect improvement here will also have to be paid for with a life. When someone gets killed walking along the highway, all of a sudden there will be money and willpower to build an adequate parking facility.