Man, that’s a lot of words to say “I don’t actually want to learn what you’re talking about”.

It’s not rude to point out what another person may not understand. That’s not stupidity. That’s lacking knowledge.

Stupidity is when someone is addressed with something they do not understand, take it as a personal attack, and then decide they would rather not waste their time to ask a single question.

You wouldn’t look stupid if you asked me something simple like “what do you mean by class?” I’d be very happy to clarify my definition of the word and move forward from there.

But it seems you are too stubborn to do anything simple like that. You’d rather be upset by a condescending tone that I can’t help but let out. If there is something I’m guilty of its definitely that.

Edit: Damn, when they delete all their comments.