That guy sounds like a tool, and paid off or not, there's thousands more just like him on Reddit. There's a thread on the Ohio sub right now about the mandates still being in place, and some are saying they'll keep wearing masks through the end of the year (because January seems like the time to stop wearing masks if that's when you choose?)
But I'd like to play devil's advocate on the passports. And I'm not saying we need them or that's what should happen. But if I'm going to go to a Reds game, and my choices are go with the the safety protocols in place, whatever they may be (I haven't paid attention.) Or, provide documentation that you got this shot already, and you can go to the game and it'll be just like pre-Covid. Wouldn't providing the documentation be the simple thing to do?