Whatg role do you believe race played in nativist attitudes towards mexicans?

Race created a divide and a barrier between the nativists and the Mexicans, as the nativists felt that they were in a higher class compared to the Mexicans. They felt that they were dirty and did not like to associate themselves with them at any cost.

Somes tribes thought of them as a greater being

Yes you are cute answer theories to explain the colonization of the new world the last great habitable landmass to be occupied by humans focus on the bering land bridge, or beringia, which emerge by siberia and alaska the last ice age.