I understand, mojavegreen. You don't know me from Adam. So, I appreciate your trust. I think the people who should bear the personal responsibility for illegal riding is illegal riders 100%. But I'm not naiive enough to believe that there aren't other contributing factors.
One is that you are very close to what is quickly becoming an urban area. You are the urban/rural interface. These sorts of conflicts are far more common where you are than anywhere else. Yours is likely the worst case of all, and is not typical of circumstances across the high desert. Most areas of limited use have no homes, businesses, or structures.
Many JF residents moved to the area well before the advance of the Hesperia city limits, and the boom in construction and migration. Your area is a corridor of access between this urban area and designated trails in the nearby National Forest. Add to that the fact that many people moved to Hesperia a decade or more ago, specifically so they could ride out of their garage and up into the NF, using the existing trails through JF. There's nothing wrong with that until a number of factors all came together in the last 20 years or so, which changed a number of things. Population explosion in Hesperia, larger numbers of teenagers and early-20-somethings with interests in OHVs, favorite riding areas being closed or severely restricted (which encourages a search for new riding areas), a society that discourages respect for others one doesn't know (arrogance, narcissism, and selfishness from both sides of the issue), non-stop attacks on legal and lawful OHV opportunities from several very powerful foes and the resulting frustration and surliness of young OHVers are all factors. Everyone is frustrated for one reason or another.
I can "load up" and leave to go ride somewhere else. That is, until all the "somewhere elses" are gone. They are disappearing right now as quickly as they ever have in the past. OHV riders are at risk of losing another 2 million acres or so to Wilderness designation under Barbara Boxer's latest iteration of her bill. And she is still vowing to revive the "Wild and Scenic Rivers" bill, which would lock up still more acreage. BLM can shut off the entire "limited use" designation any time they feel the pressure from a multi-million dollar lawsuit. They've done it before when they arbitrarily (and temporarily) re-designated all Open Use areas as Limited, and all Limited Use areas as Closed while settlement of the lawsuit was pending. Since then, a number of permanent designations have changed, and new Wilderness areas have been designated by agency decree with no public input.
OHV riders across the Western US are in no mood to sit still for any further restrictions, whether they be from BLM, USFS, Presidential use of the Antiquities Act, legislation, or litigation. Our available areas are shrinking as rapidly as our ranks are growing. It's a recipe for disaster that is beginning in your neighborhood, Morongo Basin, Phelan/Pinon Hills, etc. We can only ride the same trails in Johnson Valley so many times before we look forward to new experiences to explore. And we are fully cognisant of the plan that some environmental groups have to bottle us all up on a small patch of land, then claim the damage is just too severe to allow OHV use to continue. Or, we are all forced to ride on 3-acre mx tracks 10 miles outside of town, when very few of us trail riders actually have any interest in that at all (sort of like the old joke coined by Henry Ford "you can have a car in any color you like, as long as it's black". The difference is that it's not the least bit funny for most of the OHV riding public, and I believe very strongly that it goes very much against the best interest of the public in general. At that point, we have all lost far more than an annoyance of noise and dust.
Hope this helps to begin outlining the views of many legal and lawful OHV users. We are the ones that obey new laws.