Here's some more wording you can copy

Please do not adopt this aggressive plan. My family loves Oregon and the public lands available to us. Riding the dunes is a family activity that we all enjoy and we are responsible riders that respect the laws and land. We also bring our money into the areas we ride in, from camping fees, fuel, groceries, restaurants and other services and goods. If we are unable to fully utilize the dunes, we may be forced to seek dunes in other states, even though we would much rather our money stay within Oregon.