Yeah, NSBM is a personal preference, nothing more to add.
I think comparing women to cars is not a good analogy, but a disrespectful one. Would you compare your own mother or sister to a vehicle?
I'm an atheist and I stongly oppose religions, however I think there are many principles of behaviour and happy living that are beautifully expressed by religion. The NSBM is one of them. I mean, what percentage of married life is spent having s*x? 1%? 5%? And what percentage doing something else, like having a conversation, doing home chores, looking after the kids, etc? 50%? More?