Then you chose your title badly.

If your title had been, "Why DEI is important and helps the psyche of black people," my comments would not have been relevant and I would not have made them.

I admit that when I err, I err on the side of being condescending rather than being indulgent or fawning. Most of the time, it's actually that people in a position of authority presume that I should defer to their authority, but I am well-enough informed that I know that they have made a mistake that they shouldn't have made, and they don't like that I am neither deferring nor staying silent. But, as I said, when I err, this is the direction in which I err. I would prefer to do it less.

However, I would like to to remind your readers that it is not arrogance to stand up for yourself if you are being targeted with derogatory language. There may not be a need to--walking away or deflecting might be what you prefer. But it's not arrogance to defend yourself against being disparaged, and indeed, too little defense allows bullying behavior to spread unchecked. Feeling comfortable defending your personal reputation is a key part of healthy self-esteem. (Of course, recognizing and admitting actual faults is a key part of personal growth, and one should ideally have sufficiently robust self-esteem to be able to do this, too.)

Furthermore, if you find yourself wishing to express what you view as another's negative traits to them and actually don't want them to respond--your purpose is to get it off your chest, not try to win an egotistical victory where you say bad things about them but they don't get to respond--it's highly advisable to state them explicitly as personal opinion, e.g. "I find you to be hypocritical and obnoxious". This allows you to express your own feelings without necessarily delivering such strength of derogatory content that a reply is likely. If, instead, you make an objective claim such as, "I can see clearly that you are hypocritical and obnoxious," then of course the supposedly hypocritical and obnoxious person is likely to feel, rightly, that they are being disparaged.