Ani-Kutani Mound builders

So the I’ve heard about possible red haired giants that might’ve built the mounds and later were eradicated for basically eating people and performing other horrible acts. Would this most likely be the same Ani-Kutani that some sources say the Cherokee have a legend about which were exterminated in an uprising a few hundred years before the Europeans colonized North America?

Makes sense why this story isn’t taught given the political implications.