Not the person you replied to, and I am not trying to sound elitist, but a lot of people have ill-informed views. If they simply didn’t know before, it’s okay; but a lot people proudly prance as if they’re right, when their views are Twitter-takes instead of coming from expert sources.
I am of different opinion that these folks know they are wrong, but are too egotistic to admit it.
I was taught at an early age to accept mistakes, learn from it and move on. Now I have grown older, I realised that not many people know this, and society also stigmatises someone making mistakes. I think some people refuse to admit to be wrong because either they are too egotistic to accept and learn, or doubling down assertively on the wrong belief as a defensive mechanism from potential public humiliation.