Red herring is an argument, given in reply, that does not address the original issue. Critically, a red herring is a deliberate attempt to change the subject or divert the argument.
"Evolution is impossible because the Big Bang is a totally unacceptable theory because it defies the word of our loving Creator, He who sent His only Son, our Lord to...[continue with mindless religious yammering ad infinitum]."
The Big Bang has nothing to do with evolution. If it was proven wrong tomorrow, it wouldn't change the fact that organisms evolve to adapt to their environment, or they die.