Hereditarianism is the belief that genes, or more specifically gene alleles, are more important than anything else in determining ability - most importantly intelligence - and behavior - most importantly criminal behavior - than any other factor.
Race realism is the belief that race is an important biological classification for humans - similar to sub species among other animals - that the races differ significantly in average intelligence, criminal and sexual behavior, and that these differences are the result of evolving in response to different population pressures for thousands of years.
Hereditarianism and race realism are often considered to be racist, and for that reason unworthy of discussion, and meriting censorship.
I will begin this discussion by stating that I believe in hereditarianism and race realism. I believe that these have legitimate policy implications, and that policies that are based on assumptions about the human species that are incorrect are likely to have harmful results.
It is clear to me that agriculture and civilization have different population pressures than hunting and gathering, and that races that have practiced agriculture and civilization the longest are better suited to create and maintain successful civilizations than races that have been, comparatively speaking, more recently introduced.
I am defining a civilization as a city based society where the government has the effective monopoly on the legitimate use of violence. I believe that during most of history civilizations have selected biologically for intelligence, and against criminal behavior, while tribal societies have selected biologically for characteristics that are often disruptive for civilizations.
First, I congratulate you on bringing the race discussion beyond the "n word" and "blackface". These items are akin to discussing the price of tea in China on the Titanic as it's sinking. Whites rioted in the Boston busing crisis of 1974 without the benefit of having a confederate statue nearby to cheer them on. A few months ago the media couldn't stop talking about the stupid statues.
I agree with the spirit of your post with a major caveat and a few additions. I think "breed" would be better used in place of "sub species" to describe the difference between races.
I will have to admit that I believe there is partially a biological reason why I am more threatened by a black man than a Japanese woman. Regardless of whether one believes this is biological or cultural (people like to blame 'poverty' for violence), the social effect is the same: self-segregation and lower standards for the more violent racial segment.
The most murderous countries are in central and South America (we would call these people Hispanic), not Africa. However, blacks in the US are far more murderous than Hispanics, even though their poverty rate is roughly the same. This suggests culture plays a large role.
I disagree with the concept that these differences, caused by a combination of biology and culture, are deserving of policy implications. To do so would be to lower expectations for one race, and by extension, raise the esteem for another race. The media has done great damage already by holding different races to different standards: whites are regarded as superior (for whatever reason) by virtually everyone.
I went on a white supremacist board a few years ago to see how they think. One post struck me: Someone posted that blaming blacks for being 8 times more murderous than whites would be like blaming a pitbull for attacking someone. This is "lower standards" at work. Liberals get there in a different way, but it's lower standards just the same.
I think functionally, no matter the mechanic by which it happens, if we 'expect' more violence, poverty or unemployment from one race over another, we are part and parcel of the core issue.
I don't think many of us here would want our own race to be treated with less regard than other races, therefore I can't recommend that we do policy changes based on race, it will only exacerbate the problem. To sum up, I expect a black man to not attack me in the same way I expect a Japanese woman not to attack me - I hold them to the same standard.