Re-reply
This is not a case in which the bona fide marriage is an issue. I just do not understand why USCIS denies the I-130. It is simply a case of proving immediate relationship in the form of a birth certificate. If you cannot prove the relation to the USCIS satisfaction, refiling will have the same result.
Also, if you leave and apply for immigrant visa, you will face 3/10 year bar if admission.