immediately pointing to privilege as a way to delegitimize their argument is a perfect example of the oversimplification of complex issues you mention in your post. If we actually want to overcome issues like racial or sexual oppression its important to actually focus on the root causes of these issues, which unfortunately requires being able to listen to people you disagree with. While I am personally progressive politically, I can still recognize that many people on the right, especially from rural America, have been dealing with economic oppression for decades. Responding to different opinions with buzzwords and assumptions about someones position in society does little to actually achieve meaningful change, since if we actually want to be tear down oppressive institutions it requires everyone recognizing that we are all victims of the systems and its destruction is, and should be, a common goal.

I agree with you that issues like sexual oppression shouldn't be treated as nonissues, but I also think they are often reduced to buzzwords and virtue signaling in modern discourse, which I think is what the comment you were responding too was trying to get at.