“I don’t believe the earth is flat but they do have several points that need better explanations.”
People have already answered all of their questions many times over. It doesn’t matter.
No they haven't, saying the people are crazy may marginalize there questions but it doesn't answer them.
Show me any place in the universe that an object produces a shadow smaller than itself, except of course the moon during a color eclipse. Maybe you can use the penumbra theory like the Supremes did in Roe.