Echoing Jawaid bhai's post above, don't you think it's a rather extreme position that we agree on almost everything, including being Qur'an alone, being skeptical about what you read in the news, questioning authority and one's own beliefs, but then to call everyone who disagrees with you on one issue ignorant and arrogant? How did you think people would react? On a topic like flat earth, there's really no middle ground; either you believe it, or you don't. There's no sense in debating it, you're better off moving on to topics we might actually agree on or at least find agreeable for debate.
There is precisely zero chance you will convince me the earth is flat, since I'm already aware of all the conspiracy theories you use to justify its glaring inconsistencies. And this is coming from someone who believes some conspiracy theories are justified.