@The alchemistHe doesn't as there is no way a full-blooded native Peruvian/Bolivian is leaving their village for Africa 200 years ago
What's the chance the source of Somalis getting Melanesian, Broadly South Asian, etc. across various dna platforms (23andme, Myheritage) is actually a vestige genetic echo of the OOA wave that left through the bab el mandeb which pre-Cushitic "northern" Horner HGs harboured?