Answer me this religious people?

Because God isn't real and the only reason people believe in him is because that's what they are taught ever since they are little. Yeah... and you know that thing called the bible... it's a LIE. I just don't understand the fact that if I tell someone I believe in the santa claus, they'll laugh. And if someone else says they believe in this guy called god (someone who can control the earth and hear what everyone is thinking at the same time)everyone is completely serious. It's not that hard to figure out. I'm only 15 and I can't believe there are so many clueless adults that believe in this ****.