Lingua franca

It was said that: “The Yamasee also spoke Mobilian Jargon (also Mobilian trade language, Mobilian Trade Jargon, Chickasaw–Choctaw trade language, Yamá) was a pidgin used as a lingua franca among Native American groups living along the Gulf of Mexico around the time of European settlement of the region. It was the main language among Indian tribes in this area, mainly Louisiana. There is evidence indicating its existence as early as the late 17th to early 18th century. The Indian groups that are said to have used it were the Alabama, Apalachee, Biloxi, Chacato, Pakana, Pascagoula, Taensa, Tunica, Caddo, Chickasaw, Choctaw, Chitimacha, Natchez, and Ofo. The name is thought to refer to the Mobile Indians of the central Gulf Coast, but did not originate from this group; Mobilian Jargon is linguistically and grammatically different from the language traditionally spoken by the Mobile Indians.”
We were already speaking trading languages before the Pale Face even came over here!!! So what are they talking about???🤔