The problem with your partner actually always being right

Unlikely, they’re probably picking their fights, and/or doing prior research. Either way, if you can’t face being wrong, you can’t learn, and that’s on you. Do the emotional work until you can and learn to research yourself, few things are black and white, your side may well have good arguments and references itself, you’ll never know until you look.

This will likely be either very good or very bad for your relationship.