It’s an interesting topic.
As a convert one of the first things you get is how Catholic marriage is different from secular marriage or even most protestant marriages. And that difference is in the openness to life and being oriented to producing children and all that.
But when you add in the idea of infertility, especially something that’s known before the marriage…what’s the real difference? Calling a marriage open to life when there’s no possibility of children is just silly, I think. I at the very least would have no idea what that meant; it’s kind of like asking if I would be open to suddenly waking up as a different race than what I was born as. I mean, you could talk about it, but…it’s just so different to think about that I’m not sure I could give any sort of coherent answer.