Would a New Race be created if All the mixed race people married each other?

In South Africa, back in 1950 the government of the day took Evey person of mixed race whether it be Asian whether it be European or whether it been biracial and lumped all those people into one Singular group known today as Cape-Coloureds or just Coloureds for short. What if the same had to happen in America and Canada. Would a new Race develop

Yes a new race would develop from that idea. We could call it American-Coloureds
It will still be mixed race
Well... Things are getting there In America
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Would a New Race be created if All the mixed race people married each other?
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