Great Post...I actually had a very similar post on a different forum (although yours was WAY more developed and thought out than mine), and the responses I received were about what you would expect from FEers...the typical pseudo-science babble they always resort to when painted into a corner. Actually, calling it pseudo-science gives it too much credit, it is more complete nonsense wrapped in a blanket of scientific jargon.
Anyway, I am not sure what your reasons are for engaging these people...for me it is combination of boredom and entertainment value (I am new to these forums, but well versed on "debating" these folks). I long ago came to the conclusion that there are 3 types of FEers: The trolls, The Fundamentalists trying to justify a completely biblical interpretation of the universe, and the ignorant masses. SO here is the problem with a post like yours, as awesome as it is: The trolls...well they're trolls so who cares, the Fundies are so brainwashed they will always invent new "science" to contradict any evidence you have, and the ignorant masses are to dumb to understand anything you said. Hell, the ignorant masses are too dumb to explain why they believe in a flat earth other than, "I saw it on youtube", and "the earth is flat because it looks flat".
Anyway, enough rambling from me...good post.