You know the US does have groups of people cordoned off in New Mexico? We have similar situations all over the US. They're called Indian Reservations and we did regularly massacre the people that lived there (Wounded Knee being the most famous example).

But at least by 1924 we gave Native Americans citizenship and therefore the right of free movement. It only took about 150 years but they at least got basic rights eventually, even if the discrimination and violence continues.

Israel can't even meet the standards of decency that America, a continuously not-decent country figured out for itself before Israel even existed.