I think that it would be a lot more productive if the anti-ATV crowd took up the idea of tough penalties, rather than banishment. What ATV rider is going to admit that he is a lazy SOB and wants to break the rules, by opposing tough penalties? Take away the violator's hunting rights (even for 5 years), confiscate the ATV and fine him $10,000. A few of those fines would pay for another ranger/game warden. Make it so painful on the violators that they would stop. Again, what ATV group is going to oppose tough penalties for misuse? (You don't hear about pro-gun groups opposing stiff sentences for gun crimes, do you?)
So get off the "Ban 'em all" kick and go in a direction that may actually occur. Or is it just easier to sit back and punch a keyboard and talk tough?