I think the core issue is the fallacy of deeming men INFERTILE when they are not having sex with women.
If a man decides he wants to have a baby he cannot himself become pregnant. He does not have a womb, for starters.
So he needs to rent a human with a womb - a woman.
She needs to have a lot done to her, over at least 9 months, to grow a baby for this man.
Growing babies can be a dangerous activity. And right at the end comes the really dangerous part when the woman needs to expel the baby she has grown - usually via the vaginal canal.
She may need an operation to take the baby out safely, which requires cutting through 7 layers of different tissue, pulling the baby and the placenta out and then stitching all the layers up again. It is quite the operation.
No man can become pregnant, grow one or more foetuses, and then give birth. They need women to do so.
When heterosexual couples use surrogates I find it equally reprehensible, if that helps.
In countries where giving birth is less medicalised, the rates of mortality are rather a lot higher.