And probably most people would agree they're wrong.
And the situation itself even 'proves' they are wrong.
Because when this happens, it is now very difficult for you to NOT find the person wrong. It's now very difficult for you to not judge them for it, not condemn them for it, and not use their wrongness against them.
Even though they ARE seemingly wrong, if you don't have the discernment to see that EVEN THIS IS NOT TRUE, you will just fall into the trap and see them as guilty. And then you are stuck.
So now it's a matter of, EVEN IF YOU ARE COMPLETELY RIGHT, even if you have all the evidence to prove it, even if there is no way on the planet that the other person can be right on this matter, EVEN THEN.... you must learn to let go of the need to USE that to accuse them, or to believe it is true of them, or to 'make them wrong' for being wrong.
Yes they may be wrong, but it's just a mistake. And if you believe their mistake is true - ie "its true that they are wrong" - then you are failing to overlook the ILLUSION of this obstacle to peace.
You need to let them be wrong and step back and not judge them for it. It's a very subtle trap. You can't be at peace if you buy all the evidence and take a position of judge and jury.
Choose again. Drop the need to be right when you are right.