Same sex marriage

[Tobie]

Marriages between infertile couples or with post-menopausal women are also not capable of producing offspring. They too are not "in principle open to procreation". Try and understand the complete implications of your own damn arguments.

I do fully understand, you don't. Infertile couples do not invalidate the principle of male-female unions being open to procreation. I'm not saying that all unions must be capable of procreation, I'm saying that in principle the definition of marriage is a procreative union. Individual extreme or special cases do not invalidate the argument.

So why can't one of your exceptions be same-sex marriage?