The problem is that, by saying that this "one nation" is "under god" we are saying that this god rules over us. Not the case. No god exists.
I often ask "conservatives" whether they think the laws of the USC or the bible take precedent. Many struggle with that question.
I don't see why it's a struggle. Personally, the bible. As a citizen, the USC. Not rocket science.
On topic: I believe that 'under God' is inappropriate in the Pledge. The country is not made up of just believers so it is best to remove it.
But... I am a rational human being who can understand that,
liberty means having to support things I do not personally agree with. The pity is that there are too few people like me... and far more who think freedom is for them at the expense of others.