I should not do this, but I will engage.
The point of high fences in native wildlife scenario are 3-fold.
#1) Keep the fence hunting neighbor that has 80 acres without a lick of habitat on it from baiting deer over to his costal field to shoot them. Sometimes these guys have 0 respect and consideration for management practices and if it has antlers it gets shot. It is cool to see pictures of that promising 2-year-old baby 10 point on Facebook knowing that he never got a chance to spread his genetics.
#2) Be able to actively control genetics and cull appropriately. Also control herd health and size.
#3) Be able to control stocking rates and controlling that habitat from over grazing. Most guys that have high fence are doing significantly more than running "bait stations". Supplemental feed increases deer health and recruitment rates. A healthy doe with plenty to eat will milk better and raise bigger fawns. There are several studies that I have read that link first year body condition and health to antler development. These studies were done on multiple cervidae species. The ones off the tope of my head were for whitetail, elk and red deer. All the studies showed that a buck fawn that does not get enough groceries will be behind in development by a year or more. No, these studies were not done by Purina. Putting out safeguard wormer feed at spring green up normally helps the animals worm load. This is easy to confirm with fecal sample floats.
Down here in Texas where everything is basically OTC your only limited by having places to hunt and the number of tags on your license and county restrictions. A neighbor with 10 acres that backs up to your 3-section place can legally hunt and harvest as many deer as he wants. Himself, his kids and grandkids can all come shoot deer. This happened last year on one of our places. The neighbor owns an 80-acre costal field. The feeder 10 yards into his place was successful in luring 6 bucks to their demise. Yes, he took 6 bucks and an unknown number of does off 80 acres that has no habitat on it. No, I am not mad about it, but it will take those deer herds on that place years to recover because of one neighbor’s short sightedness and itchy trigger finger. While I am not interested in engaging a debate on why Texas sucks, in other states the wildlife departments set the number of harvests in a particular unit (Excluding landowner tags). Here its more or less set by the landowners. The county restrictions lag behind the game seasons by years and they will not turn a 2 buck 2 doe per license country into a 1 buck 0 doe county until things have gotten bad. Because of this as a landowner it is in your best interest to manage with the future in mind.