Quite simply leasing is the biggest threat to the average hunter, and hunting as we know it today.
I'm not talking about hard-core dedicated types. They are willing to spend money to hunt if that is what it takes. But the average guy out there, and there are many of them, doesn't hunt every day of the season, doesn't take vacation to hunt, doesn't live and breath deer, scout all year, etc. But they are hunters who buy licenses, bullets, guns, etc. And most importantly, they are hunters that take their kids hunting.
Leasing WILL cause increasing numbers of these guys to quit hunting. When they are gone from the ranks (along with reduced hunter recruitment), don't blame them when more anti-hunting / anti-gun legislation gets passed.