Race and IQ

I've been red pilled about race and IQ but there are still some things that I don't get.

>Regression to the mean

How would accepting high IQ people from places like Africa negatively affect the country's overall IQ? For instance, if two blacks with an IQ of 115 had offspring would their kids necessarily have a significantly lower IQ?

>IQ and violent crime

When you account for poverty level, are blacks really more violent overall than whites? And even if they are, couldn't you argue that the cause is cultural and not genetic?

>IQ and democracy

Is there any definitive proof that a nation's low average IQ makes it less capable of sustaining a democracy? If so how does it account for places like Ghana having relatively stable democracies?

>Race and brain size

If brain size is the primary cause driving IQ and the difference between race's IQ's then why do Amerindians have such relatively big brains when their IQ is so low?

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ncbi.nlm.nih.gov/pmc/articles/PMC1180234/
ncbi.nlm.nih.gov/pmc/articles/PMC1828730/pdf/1471-2164-8-68.pdf
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pic related on race and IQ

Different structures in the brain have different purposes. Normally the front parts of the brain are more important for abstract thinking and what we would conventionally understand as "intelligence". Overall brain size is a fairly crude metric. Front-brain size will presumably correlate positively with overall brain size, but they are fundamentally different measurements.

>Hispanic
>Race

Whoever made this chart is a fucking nigger

Why should non mestizo hispanics be blamed for mestizo iq?

Related, but does anyone know which IQ tests are administered when looking at average IQ for each country? I know the standford binet test is te standard in America, but I very much doubt they would use that same test in say, Zimbabwe.

I think it means mestizo

so specifically what parts of brains for Amerindians are bigger that cause them to have such big brains while still having such a lower IQ?

Couldn't say. I would speculate generally that they have relatively small front brains and relatively large middle and hind brains.

>How would accepting high IQ people from places like Africa negatively affect the country's overall IQ? For instance, if two blacks with an IQ of 115 had offspring would their kids necessarily have a significantly lower IQ?

This actually depends if the familiar lineage is successful (or have a higher avg iq).
If these African migrants have parents with higher iq, then it is possible that their kids will also have a high iq.
If their parents had lower iq (no successful family), their children is more likely to have lower iq than the previous example.

*family lineage