No one is looking to “defeat” you.

Accepting and internalising it when someone explains you’re wrong about something, results in two people being right about something, not a “winner” and a “loser”.

Changing your mind is not losing.

We can still have a discussion about your hypothetical, after.

But you’ve walked in with a bunch of fallacies and in response to having them corrected, turned so abrasive, that your behaviour and world view is now the only thing anyone is interested in talking about.