I could care less if they lose value, they didn't buy the public lands, they don't pay taxes on it, and their grievance is not with the public or 4 hunters from Missouri that used public land that some d-bag "thought" he owned.
I also don't believe for one split second that property values will decline...I heard that same shit when stream access passed in Montana. Same garbage spewed by landowners and real estate agents and guess what, land value's on streams/rivers in Montana didn't drop a bit.
Go find me some reduced priced land on the Yellowstone, Bitterroot, Clark Fork, Blackfoot, Clearwater, Gallatin, Jefferson, Madison...I'm in the market but want to pay about $400 and acre. You know, since stream access killed the value.