The commandment is "Thou shalt not take the name of the Lord thy God in vain". There is nothing about not taking the name of the Lord someone else's god in vain. Not that I think the man mentioned in the OP took Jesus's name in vain anyway, though I realise that perhaps some people think he did. Clearly it's a matter of opinion not a hard and fast rule.
And, even if it is a hard and fast rule for Christians, that doesn't make it so for non-Christians, just as not eating pork doesn't apply to non-Jews and not depicting the Islamic prophet doesn't apply to non-Muslims.
It's not a question of morality, after all, like stealing or killing.
We don't know, presumably, if OP-man is a Christian, so we shouldn't be judging his words as if he were.
Sometimes it’s just the small things that press the bruise isn’t it? 😢
Is a new relationship possible without sex?
National treasures. Who would you choose?


or why it was even considered a blasphemy in the first place. It seemed to me to be a cry of despair.)
