I have to modify my first comment. If you have that much of a problem getting bumped into by other hunters on public land, you have the following reasonable solutions.

1. Buy your own land.
2. If buying land isn't an option, quit huntin'. With your attitude towards public land hunting with the "slobs", you oviously aren't very successful at working with the complications.

The best public land hunters I know are absolutelyobsessed and don't let any interference bother him.
If my memory serves me right,they kill most of their birds later in the day anyway, when most of the "slobs" are already gone.I killed my best bird at 12:37 PM on a Saturday on public ground. There were 3 cars when I arrived and I was the only one there when I returned.