Why are you asserting that they do believe in Satan?
I said "excuse me" earlier to clarify my opinion.
Secular Humanism is a half-truth perpetrated by Satan to distract people from pursuing God.
I have nothing against scientific examinations, but I take issue when a group of people insist that my life is meaningless while simultaneously failing to explain to me WHY things originated the way that they did.
To believe that the entire universe came into existence without some form of Divine inspiration is totally laughable.