Atlas.....nice try.
The answer to your question is......because the deer I'm after are in jeopardy of being downed by another hunter.....free to run to the next STATE if they want to........succeptible to predators from other areas.......and basically just free to say...."I don't like it here....I'm leaving".
Part of being an all around "hunter"....(since we're throwing opinions around) is being able to keep your FREE RANGING deer in the area you hunt. Why do people plant food plots (really)? Why do we supplemental feed? Why do we keep supplying our mineral sites with minerals? Why do we make sure the creeks flow, properly? Why do we fell trees to aid in bedding habitat? Why? Why? Why?
It's really not that hard an anser.....if you didn't have one in mind you were looking and fishing for to match your own opinion.