I would buy a story about Hanno the Navigator discovering the Americas before any Chinese story.
LA Marzulli did a series of videos about the ancient Philistines packing up and moving to South America. A good portion of those alien elongated skulls they find in Peru supposedly have Middle Eastern mitochondrial DNA.
I used to have a book titled THEY ALL DISCOVERED AMERICA by Charles Michael Boland.
Interesting but still take it with a grain of salt. Or even better, a spoonfull of salt.