If you’re atheist, that’s fine, but if you insult beliefs and religions, it doesn’t prove you’re right, it proves that you’re insecure and trying to make yourself be more comfortable with your being an atheist.
If a man walks up to you on the street and declares that he’s the Third Prince to the Zenon Empire, and needs fourteen chickens to ascend to his home planet, wouldn’t you think he was silly, and worthy of being poked fun at? Suppose you asked this man where Zenon was, and he told you he didn’t know. You then ask him how he knows he’s the Third Prince, and he tells you that he was anointed in a dream by disembodied voices. You’d presumably say that voices in someone’s dream are HARDLY a firm basis on which to derive one’s reality, but then something strange happens, the man you’ve been speaking with, calm, and amiable up until this point, suddenly looks quite angry:
“How DARE you,” he says, “How DARE you insult my beliefs!” He then tells you that for insulting Zenon royalty, you will be banished to the Ice Mines of Durroth once the spaceship comes to retrieve all Zenonian citizens from Earth.
Now, imagine that nearly everybody on Earth believes themselves to be a Zenonian citizen, and they ritually go to farms to purchase chickens to prove their citizenry to Zenon. When you point out the absurdity of it all, there is massive backlash, cries of “How DARE you insult our beliefs!” and”Stop trying to cram your beliefs down our throat!”
But that’s not the worst of it. The Zenonians wish for everyone to be like them, so they do what they can to have laws passed that require people to wear tight, uncomfortable undergarments at all times, because their Guide to Zenon says all citizens must wear something of the sort. They also outlaw ice cream, because they believe cream may only be whipped or put in coffee.
Their beliefs are being thrust upon you, and every time you speak out, you are vilified, and made to be a social pariah.
If you can imagine how you’d feel in this situation, you’d have a vague idea of what it’s like to be an atheist in a Christian world, and how it is to point out absurdity in a culture, then reprimanded for being “insulting.”