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Once you recognize it for what it is, you don't have any more problem with it. Flat-earthers are simply sucked into the ridiculous nonsense that the Church's enemies have stirred up making false accusations against the facts of history.
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The bottom line is, anyone can see first hand that the earth is a globe just by paying attention to the moon.
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Yesterday as the moon crossed the sky directly overhead it was approaching its first quarter moon phase. Looking at its appearance from high in the sky in the early evening and then from time to time later toward midnight, the illumined side of the moon was clearly facing downward, and since we know that the sun is shining at a right angle to our line of sight to the moon, we can see that the sun is located far away, directly below our feet at 10:00 pm. This is in direct contradiction to the nonsense flat-earth claim that "the sun never sets."
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Our ancestors were not stupid. And trying to impose stupidity on them only to justify being deliberately stupid today is just, well, stupid.
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