No, the consensus of scientists who actually study this is pretty strong, and supports the parent's post. Jayman has collected a nice sequence of citations on the matter, most of which are peer-reviewed:
https://jaymans.wordpress.com/hbd-fundamentals/#Race-IQ
Much effort has been made to minimize the effect of poverty, stereotyping, and other non-hereditary factors in much of the literature.
Most people downvoting the parent are likely doing so because this research is uncomfortable, not because it is wrong.