I think when trying to debate something, the idea should be to try to convince the other person. That sounds stupidly obvious, but it's really not. Imagine you'

I think when trying to debate something, the idea should be to try to convince the other person. That sounds stupidly obvious, but it's really not. Imagine you're debating somebody over something and resorted to an argument over the exact meaning of terms that, to people who might not share your worldview, would be completely obvious. It's unlikely you'd really be persuading them of anything. I think the more salient point is that even if you assume clear racial distinctions, and even substantial racial differences, that still does not justify any sort of racial ideology. The movie Gattaca works as an oddly perfect metaphor for racial ideologies and its problems. Gattaca was about genetics, but it's not a coincidence that it fits perfectly with race, as it's literally the exact same problem. Just because somebody is a part of a group with some sort of a negative correlation, does not mean that person will inherently let that trait dominate them. Incidentally the reverse is also true - just because somebody may e.g. have a high IQ does not mean they will inherently be knowledgeable or wise. It's okay to consider group tendencies, but at the end of the day individuals are able to rise far above or fall far below their "expectation", and so it's important to judge each person not by the makeup of their genetics, but by the content of their character.