Why are people so gullible?

IN THE BACK OF THERE MIND I KNOW THEY KNOW RELIGION IS CRAP, BUT ITS JUST TO TO TO HARD FOR PEOPLE TO ADMIT THE BASIS OF THERE LIFE IS A LIE, AND CHANGE THE ONLY WAY OF LIFE THEYVE KNOWN, ITS EASIER FOR THE SIMPLE MINDED" GULLIBLE" TO JUST REVERT INTO A DELUSIONAL STATE OF MIND, AND LIVE IN MAKE BELIEVE.