Oh, puh-leaze... You're reading a ridiculous amount into use of an idiom. People pick up common figures of speech -- it doesn't "signify" anything. Or are you going to tell me that people who say "holy cow" are actually revealing a fundamental belief in Hinduism, or that anyone who uses the phrase "holy s**t" worships manure?
By trying to read anything into someone's adoption of the common phrase, "oh my god", you're just being silly.
Actually 'holy cow'is referring to the Old Testament (Num.19), the Red Heifer that was used to purification.
snip...By trying to read anything into someone's adoption of the common phrase, "oh my god", you're just being silly
While I understand the point you're making, even so, it does seem somewhat nonsensical for an atheist/human secular/Marxist to swear by something which they've also 'sworn' not to believe exists. Either God exists or He does not. If they don't believe in the existence of God, it would make sense for them never to swear by His name. But then, it would also make sense if they did not expend so much emotion on something they profess not to believe in.