It’s not necessarily about QDM on public land. It’s all about what is available. IF you think there are buck that exist better than 100”, then you have to decide IF you are willing to take the chance (even if its small) of seeing one. Worrying about whether or not the next person is going to kill something is stupid, and a HUGE peeve of mine. It’s about hunting what is THERE, not what might be there next year, or whether or not the next goof would shoot it.
You CAN’T have the mentality to pass in hopes of seeing it next year. You have to figure out what exists NOW and make your decision from there. Some get thru, they can’t kill them all. Granted in many places that “some” is a really low number and you have to be realistic about it.