[Thriptic]

I don't think it's correct to say one way or the other what the critical driver is, as to my knowledge we don't have the necessary data to make such statements. Both genetics and environment likely play a role. We as a society have decided that it is unethical / not in our societal best interest to perform the experiments necessary to further investigate the mechanism, and so we should focus our efforts on alleviating environmental drivers of the problem. With that being said, to write off theoretical heritable causes of poverty or low intelligence just because they makes us uncomfortable would be bad science. We should be transparent about the limitations of our data and admit that as a society we are content with not knowing the answer to this question.

[reasonishy]

The other issue is that society has become so detached from nature that a lot of people are completely oblivious. If you breed animals, questions like this are pretty obvious and easy to answer.