>she's clearly upset about Donald Glover's dating choices

I feel like you're interpreting a whole lot from one line here.

It seems relevant, in an article questioning his view of black women, to note that he doesn't date black women.

I also can't help but notice that rather than simply disagree with her on the relevance, you're accusing her of being overly emotional about it ("she's clearly upset"), which is a common way that women are silenced.

You are free to disagree with her, but you should not try to discredit her by attributing emotion to her and then attacking her on that ground. Your take largely boils down to a more polite way of saying "look at this women, she's acting hysterical!"