All humanity is One.

Manas Ki Jaat Sabhai Ikey Pachanabo
Awal Allah Nur Upayiah Kudrat Key Sabh Bandey

The Guru writes in Gurbani that all of humanity are the equal creation of Akal Purukh (The Timeless Being).

Recently a study was done on an Island where many people had been left there for generations. They were originally Northern Italians. As time went on some four generations later, children of varying complexions were born. Scientists have come to the agreement that mankind has a common genetic origin.