Just my opinion for what it is worth...
This is exactly what the anti's want. Our numbers to reduce down so that they can convince State fish and game departments, as well as the feds (both of which are infested with anti-hunting types, by the way) that hunters no longer make an impact on effective wildlife management.
I fully understand your situation. While muzzleloading is an important part of my sporting life, I enjoy other aspects as well. For the better part of 30 years, it was all about duck hunting with me. Then, just like that I lost my favorite spot. The property was sold. The good news was it wasn't developed. Bad is news is the new owners quickly posted it and let it be known that hunters would not be welcome.
I searched and scouted and just could not find anything suitable that didn't require a boat, which I don't have. So, I shifted and rediscovered my love of grouse and woodcock hunting. I have to travel a little bit to find the grouse, but woodcock are all over where I live in Virginia. I have a pleasant four-year-old Gordon Setter which adds to the fun. I hunt with a 16-gauge double, and occasionally take a muzzleloading shotgun. If you have never tried grouse and woodcock hunting with one of those, you are in for a treat. Try something else and keep going forward. I'm going to hunt until I am no longer physically able to.