These people have shown they'll deny their own 5 senses in favor of some whackjob with nonsensical, but bright and pretty animations on youtube, so what chance that they will ever want to to understand rational discussion?
I had thought the midnight sun in the arctic/antarctic circles would give them enough pause to wake the left side of at least one such brain, but no! There's a youtube "explanation" for that too - Antarctica doesn't exist, and the sun is always above the pizza-earth, but only radiates a conical beam of light. How incredibly, mind-bogglingly idiotic!
* I personally know a guy who did a 9 month tour at South Pole Station. It really exists.
I have debated a lot of globalists like you, and just to give you a piece of advice, if you start with the presumption that flat earthers are stupid, you are going to end up with egg on your face.
So here's the deal, explain to me how we can see objects over the horizon that the math says should not be there, or else go away, and stop wasting our time. You don't know what you are talking about.
Here is a start:
http://flatearthtrads.forumga.net/t17-objects-over-the-horizon-proofs