Straight from their mission:
We believe winter wildland adventurers and future generations should have sizable areas of public land on which to experience the natural sights, sounds, and winter beauty of public lands free of motorized vehicles, and that our backcountry wildlife habitat should be protected from the negative impacts of motorized intrusion such as snowmobiles. We also believe it is the mandate of federal land-management agencies to responsibly manage motorized access to these cherished assets to ensure their protection for future generations.
So they want large amounts of public land to be free of snowmobiles and they want the government to be mandated to make this happen.
This **** pisses me off because they could care less about all the visitors in the summer months. Just have a vendetta against snowmobiles. The way I see is that we'll never gain an extra acre or mile on which to use our sleds - we just lose a little every year, and anyone trying to set aside land that we can't use is the enemy. Maybe that's harsh, but that side will never be happy until we are 100% gone. As far as REI is concerned, it's difficult to find a large company that doesn't somehow support the opposition (sure you can buy klim, but gore-tex supports some of these groups as well), but we have to do the best we can to avoid supporting those who would prefer that we don't exist. Of course we also have to join MSA, Blue Ribbon Coalition, etc. and do our best to respect the areas we ride on and not create ammunition for them...