S Curtiss wrote:

In "wilderness" perhaps. In many closer areas, recreation lands, some areas
of National Forests, and public lands not designated "wilderness", multi-use
is necessary and has proven effective while cooperative efforts and
techniques are in place. And enforced.

In reality, hikers are allied strongly with other human-powered users
(XC skiers, mountain bikers, etc), in trying to prevent motorized
intrusion (snow-mobiles, off-road vehicles, etc.). There are very few
hikers that are as clueless as MV or Ed, when it comes to addressing the
real threats to trails and to the back-country.