>>513418091
This is because in order to build a civilization you need a mixture of "beta males" and low IQ individuals (mostly beta males). This is called the dysgenic system. It's the reason why they are replacing whites with jeets. Jeets are as low IQ as black people but it doesn't matter.
The only exceptions we have seen around the world are Mexican and Mali/Ghana.
When I say Mexican I mean post Olmec.