It's weird to me that some atheists here are seeing this as evidence that religious people are dumb. What makes anyone think that they wouldn't also be worshipping whatever god their parents and culture taught them to worship if they grew up in Babylonia 6000 years ago? This meme points out that we are the product of our upbringing. Calling religious folks stupid in this thread lacks the very self awareness that it criticises, and isn't going to win any arguments anyway.
Many of us here know what it's like to be religious. To grow up not knowing better. We know how short-sighted, guillible and hypocritical religion makes people.