Could genetic inheritence not give us more insight?

For instance they say the cradle of mankind is in Africa. If so why have I never seen an African with blue eyes?

Why are our traits so different from the Chinese or the Red Indians for instance?

Questions like that, wouldn't some more understanding of genetic inheritance help us understand where we all came from?

I'm African, and I have green eyes. Does that count?

Blue eyes are actually from a recessive gene. It's a genetic defect!

There's lots of on-going research in this field, but it turns out to be more complicated than previously thought.

However one has to really wonder why we all have these major differences and then try add it all up with what people in general are taught. I know blue eyes are recessive, but how does it explain anything.

It is very difficult to bring this issue up in fear that some may see it otherwise, but I'm merely hoping everyone sticks to facts and leave all the other bulldust out of it.

Now where did the Chinese come from?
What made an Indian and Indian?
What made a White a White?
What made an African and African?

Then we have to start questioning many other things.

@ Claymore, green eyes are commonly caused by a mixture of brown and yellow that appears green afaik.

It is rather strange how different varieties of colours are found in different parts of the world. For instance wiki reckons nearly 80% of Icelanders have either blue or green eyes.

But not only eye colour, what about other traits.