God ( irony intended) help us! But we seem to have entered a period when "truth" is a matter of personal preference. Why that might be we can only speculate. Poor understanding of evidence and scientific thinking in an age when education has returned to mechanical teach-and-test rather developing thinking from first principles is one of my best guesses. Another is that our populations have become so used to being lied to that we just choose the versions we prefer from a menu. Or maybe it's that the truth is just too awful to cope with.