“If I can’t win an argument, I must change my mind.”

No, that is not logical.

Take me for example: I am always right, therefore I never need to change my mind.

But OTOH I do not win arguments, because I simply do not argue - no need to, because I am right anyway.

And so it happens that some people, who don’t know sh*t, seem to win arguments despite being wrong and absolutely needing to change their minds.

/s