I think that people will protect what you love. If you want to protect the heritage of hunting, having hunting land and the access to public land you just need to band together.
Here is the thing, The East, Mid West and West Coast has been overdeveloped in terms of use of resources and green space. It's not right or wrong, it just is. When it was being developed we were a 3rd world country and didn't have a lot of regulations as to the use. For example, Maryland is a small State in terms of area (9,700 sq. miles), and population (6MM ), that only has about 4% of it's land mass as public land and much of that is marsh that couldn't be built on. There WERE elk in MD when my ancestors settled on Delmarva in the 1620s from the Hampton Roads VA area, but we ate them during unregulated hunting. Same with bears. It's one of the oldest populated areas in North America and has seen lots of changes to land use and is now its a beautiful suburb after suburb. My wife loves some of the old fishing towns in DE, MD, VA, NC, SC, NH, MA & ME. She really likes the shadow of the heritage of life gone past but not necessarily the grit that got it there. Anyone who has lived in a once ruff and tumble town that has been gentrified, then you will know what I mean.
New Jersey is a small state with about 1,700 people per sq. mile. I believe about 15% of the land is public land (most owned by the State). That may sound like a reasonable amount but the land mass is only 7,300 sq. miles housing about 8.8MM people. The types of public land use in NJ is varied and honestly hunters get the most competition from the non-hunters using the same space for a lot of other things (weird things). Given all this, the government has to accommodate everyone but the majority of folks are not hunters. Anti hunting and anti guns are ramped is such a populous state. You all may have seen the bear hunt issue in NJ. The politicians are wearing this ban as a badge of honor to all those other public interest groups. They couldn't technically outlaw bear hunting without a vote, so the Gov just outlawed it on State owned lands. Given the land situation, that's the same as outlawing bear hunting.
The Western mountain States are going to change as new populations move in but you can guide the development of the land and land use arrangements that will benefit everyone in the State. You have the benefit of not being over developed with lots of public land, so you can design what your future looks like.