That's not what I'm saying. I'm saying you don't need to be an asshole to disagree. You don't need to "tear down" beliefs and "not play nice". Being rude to people for being wrong just makes them dig deeper into being wrong out of defensiveness. It isn't about edification, it's about finding an excuse to be mean.

That said, other people's education is not my responsibility. Taking the time and energy required to correct a random stranger about what shape the earth is isn't going to change the world but it will take a toll on me. Being wrong doesn't make them a bad person. Being a jerk to them for believing so does. Believing in a flat earth a symptom of fundamentally flawed reasoning skills that I don't have the time or energy to deal with. If someone believes the earth is flat, I'll politely disagree and state my opinion, but ultimately I'll let them do them. Who cares. I choose my friends, they won't make the cut.