Taking does out of a population is the sure fire way to reduce the population.
Taking bucks doesn't harm the population at all, deer aren't monogamous animals. I buck will easily breed 18 or more doe's.
Which is also another reason to "cull" a population of inferior bucks. Irregular racks, albino's, and the small statured all should be culled from a population so to stop those traits from being passed on.
The first part of your post was right on, the second part - not so much. What is cull???
Have you ever watched a deer, either on the camera or in the woods, grow over the years? They change and their racks change every year so what is "irregular" one year, may change the next. Or maybe they were injured on a side one year so the corresponding rack grows a little "irregular," or they are a little smaller. Personally I find "irregular racks" to have the most character, and I am most certainly glad no one culled the 5.5 year drop tine I got this year. He was a nice trashy buck...
Besides for all you guys who care about mounts, who is going to waste their 2 buck kills on culling???