How is it a federal land grab when land the federal government (us taxpayers) have always owned is reclassified. For example, if you take national forest which is public land, or blm lands, which is public land, and designate part of it as a national monument, then that is hardly a federal land grab as the land has always been public to begin with.
Moreover, if a field biologist reports to a blm land manager that a tract of public land is being over grazed and thus the number of cattle per acre allowed to graze on it must be reduced for grazing to be sustainable on it, then that isn't a federal land grab either, its recognizing reality.
The fact is even the majority of the citizens of western states (including Nevada), oppose giving the states control over federal land.
Poll shows majority in West opposes giving states control over federal land - LA Times
Why? Because they have sense enough to know that it would be a terrible idea for a variety of reasons. The only people that want that land sold off or transferred to the state are extremists like Bundy. Federal land management is far from perfect, but as any outdoorsman will tell you its a hell of a lot better than most state and local land management.