No one is claiming the earth is flat. And to try to create some analogy is specious. And all you've been asked to do is show a little humility, or at least civility, towards well meaning people who hold different opinions than you on topics in which individuals more highly educated than you still differ.
The argument from thermodynamics is decided.
Then perhaps you can explain why a Mathematics PhD thinks otherwise, and why Wiley, one of the most respected science textbook publishers, published not only his textbook but also an appendix on this very topic????????
Perhaps you can send them an email asking them to consult with you -- and and Ichy-Dichy-Nine-Doors or whatever he calls himself -- on this topic before making any related publishing decisions. Do show us the response when you get it.... I'd pay cash money for that one.
Speaking of hilarious, maybe you can Ichy can tell Wiley where Sewell's "hilarious" mistakes are.