There comes a time when one must pull the hood down and blend into the surroundings. Where once strong men could stand proudly out in the open with weapons at the ready. Now they must clean and prepare them to be hidden for a time. When the day of reckoning comes, they can be ready.
The quick answer is yes.
More than likely, everyone in the world has a common ancestor back in history.
If you believe in the bible, then we are all spawns of Noah. If you believe in another religion or that aliens put us here. We all come from a single source; science continues to show this is true.
There is no question that at some point, groups of humans migrated over different parts of the earth, and then over time, particular distinctions became part of the makeup, even to the point of changing DNA.