Let me understand your logic, so the Treaty of Guadalupe Hidalgo gave all this land to US Government and anyone on the land can be removed?
The U.S. paid $15 million for the land acquired under the Treaty of Guadalupe Hidalgo in 1848. Nevada disclaimed all rights and title to the land when it became a state in 1864 under the provisions of the Nevada Statehood Act. When Congress admitted Texas into the Union, it allowed the state to retain ownership of all unappropriated land within its borders. I haven't yet researched the provisions of California's admission to statehood.
With that said, there is a valid argument that Nevada's disclaim was unconstitutional under the Equal Footing Doctrine. See the details here.
Interesting, thanks