Dumb people are less annoying than the midwits. Dumb people will stick to their guns, but you can walk away from them and their hill. People who are a little smart, but think they are really smart, are the worst. I knew a guy who would insist that A or B thing was true. I sniffed bullshit, looked it up, and he was wrong. I'd point it out and he would lose his mind about it. It got to a point that I would regularly Google his bullshit and he would get mad at me the second he saw my smartphone come out because he knew what was coming.
He wouldn't even insist about controversial or serious positions. This would also happen in one-on-one interactions, so it wasn't even a thing where he was trying to show off and got mad that I ruined it, or made him look stupid to others. It would be something really mundane and pointless but, for whatever reason, him having this incorrect factoid was so important to his ego that a simple correction made him MATI-level upset.
Too many people in this world have giant egos.