OMG, how dense can you be? You can be a sexist black men. But the chances that you will be invited to a NASA conference to insult a female scientist in the first place is mediated by your chances of being a highly educated scientist yourself which is limited by systemic racism still inherent in STEM and the education system of the US.

So, statistically speaking, it would still be more likely to be a white male, the one doing the insulting.