I'm always reminded of the passage about being 'unequally yoked'
Wow. Not a verse many people are familiar with - I'm impressed.
In this country though, an awful lot of people have a live and let live approach to religion, as opposed to even just a century or more back when even Protestant denominations were leery or hostile to one another, much less their reciprocated hatred of Catholics. Mixed religion marriages don't surprise me, partly because even in ones where they're presumably in the SAME religion, all too often ONE is going to church, and the other isn't, or only has nominal participation - so they might as WELL be different religions.
What WOULD surprise me is mixed religion where a tenet of one of them is - basically - hatred towards the other.
I'm fortunate that my wife and I tend to share a lot of the same political views, but as much as I like to discuss politics, she seriously does not.
Political shows go off when she comes in to the room, especially if two sides are debating. I respect that, as there are a lot of things to do that aren't watching a political program, and I have my own TV. She supports the 2nd Amendment - but forbids guns in the home. Like, ever.
I had a
really good friend in a co-worker (who got another - better job) who was almost as politically opposite on issues as I am - but he was reasonable, allowed me to express my views as I allowed him, and we had a lot of other interests in common so we didn't have to always discuss politics. In short - unlike a couple of my blood RELATIVES - I wasn't "the enemy". He was a Hillary supporter, but I wasn't some idiot right wing nut, and I respected him because he explained his views with respect. There was no name-calling.
At my workplace, we have people from all over the world - I'm often amazed by the fact that I can be insulted and ganged up on by my own family for my conservative views, but I can carry a conversation with a Vietnamese co-worker who totally supports Communism without any animosity. Go figure.