My perception regarding life is that, don't argue with foolish people. Because they can drop you to their foolish level by exchanges their stupid views.
So you dont bother about their theories just let
them understand and trust what information
they have either it is rational or false.
My simple technique to handle these kind of
people is that, i never tried to correct them and
say..yes..u r right. Just believe in yourself and live
the life you dreamed.