I'm pretty sure, if you are offended by the word God, you can substitute another word, such as "Ayn Rand" or "the human intellect". Nobodys insisting that you have to do...anything really.
I am not offended by someone's personally held religious beliefs. I am, however, deliberately excluded if participating means adhering to a code of conduct that targets my beliefs.
A general problem with this genre of claims is that they're pure confirmation bias: you don't notice the people who don't tell you, because they don't tell you.