It’s not his land. His cattle are grazing on federal land.
At the end of the Mexican-American War in 1848, Mexico and the U.S. signed the Treaty of Guadalupe Hidalgo which granted title to that land to the U.S., for which the U.S. paid Mexico $15 million.
Sixteen years later in 1864, Nevada became a state. A provision of the Nevada Statehood Act of 1864 promised that Nevada would disclaim all rights to the unappropriated public lands lying within its boundaries, and that such land would remain at the sole disposition of the United States.
Cliven Bundy has no legal right to graze his cattle on federal land without permission. When he stopped paying grazing fees, the federal government sold his grazing rights to the Clark County Multiple Species Habitat Conservation Plan.
In short, the U.S. bought and paid for that land. It owns it. It makes the rules on it. Article 1 section 8 of the Constitution specifically enumerates Congress the EXCLUSIVE legislative authority in all cases whatsoever. State law does not apply. County law does not apply. Cattle Barron law does not apply. Open range law does not apply. The ONLY law that does apply is US Federal law.
Your points are analogous to a Muslim arguing for an outcome and using Natural Rights to buttress his position.
Nice try.