First define "truth", and I'll start to worry about that.
Just don't start calling people names. It's not helpful in any sense. I'm not trying to lower the quality of discussion here, quite the opposite (not that it isn't high quality discussion). If we don't disagree, it's not cause I'm stupider than you (which is the implication in comparing me to a flat earther)... It's cause our experiences lead us to different conclusions. Maybe I am stupider than you. even then is that a reason to exclude someone from a conversation? Maybe I want to talk about the relationship between "mythos" and "logos". Maybe that makes me irrational? Why jump to the conclusion that I have no idea what I'm talking about? Why assume I'm attached to my ideas to the point where you can't point out their flaws without ad hominem attacks?
really... You guys take everything so seriously.