Yes, many of them are. Look at all of the evil things aztecs and other groups did with the human sacrifices, ripping people's skin off, ripping people's hearts out. They were working directly with the jewish grey aliens, which is shown in their art pictures of these aliens. If they were not racial jews, they might as well have been.
Then when the "Spanish" conquistadors went there, the majority of the conquistadors were jews. And they interbred with local people. Anybody who is a descendent of a jew is also a jew.