re: This is an actual slide from a Science Teacher's convention

This is about as anti-science a statement as I can imagine, and the person making this statement is not a real scientist. He or she may pretend to be a scientist and to know something about science, and he or she may be paid money to pretend to be a scientist, but to be a real scientist one must engage in the practice of science. Being anti-scientific actually disqualifies someone from being a scientist, though regrettably it does not disqualify someone from pretending to be a scientist or from calling oneself a "science" teacher.

One of the things that one learns as a real scientist is that there are all kinds of differences among groups of people that are due to a wide range of causes. Sure, bigotry, prejudice, racism, and sexism can be reasons, but there are many, many other factors that explain inter-group differences. The lion's share of causal factors explaining inter-group differences have nothing to do with bigotry, prejudice, racism, and sexism.