That's a difficult question, ornxoxo - as some would say that Catholics are non-christian as well........so really it's a matter of definition of the 2 views..........anyway, I don't think a priest would refuse to marry you on those grounds. That being said, this IS Mexico, so who really knows ?!??! and it may boil down to it depending on which people you're dealing with.....so you're often left with a bit of a mystery .......hmmm It's probably best to get confirmation from the specific priest you're considering - directly.