However, the majority of surrogacy arrangements are positive.
Are they? How do you know? And 'positive' for who? Have any studies been done on the babies who will grow up to be told that their mother gestated and birthed them for a fee? Or on the woman's 'own' children who will see their mother pregnant but be told that that baby is not their little brother or sister, but that mummy will give it away to strangers once he/she is born?
Surrogacy is as old as the hills.
So is slavery. Really poor argument.
If a woman wants to help another in this way, who are we to forbid it?
We forbid all sorts of things. Just because you've dressed it up in cutesy terms like 'helping' doesn't mean there aren't very real ethical issues involved.
In any case, who is poorer, the one with no money or the one with no longed-for child? Which would you rather be?
The latter, most definitely. Rich women aren't gestating babies for poor couples, are they? Funny how all these women who just 'love' being pregnant for complete strangers don't tend to be CEOs or university lecturers.