If only we could hold them to their delusional beliefs and deny them everything science has produced.

"The true-believer syndrome merits study by science. What is it that compels a person, past all reason, to believe the unbelievable. How can an otherwise sane individual become so enamored of a fantasy, an imposture, that even after it's exposed in the bright light of day he still clings to it - indeed, clings to it all the harder? No amount of logic can shatter a faith consciously based on a lie." - M. Lamar Keene

Accepting evidence is far better than believing nonsense.