If it was simple English, used correctly in context, you would have communicated something. “It is clear you don’t understand what a tautology is, or how it invalidates your pseudoscience” makes no sense in the context of the discussion. It is as if you had pasted the reply to someone else onto my post. How does what you say mean anything in reply to this?

“I’m guessing that you think American women today are still oppressed by American Men? Oppression is what the American Indians suffered under white American settlers, and what the Jews suffered under Hitler, what the Kulaks suffered under Stalin. To use the term to describe the horrors of been mansplained to by a man demeans the term oppression.”

Technically you are correct that your reply is plain English; it is just meaningless in this context. I assumed you didn’t understand the meaning of tautology or pseudoscience, but I now think you just tried to insult me, because you could not come up with a justification for your position.