VV, do you mean that you think a surrogate should be able to retain parental rights for that child until he or she is 18?
Retain, yes. If she immediately says she wants to keep the child, she keeps it.
If the child has lived three years with the genetic parents, then that's a bit trickier, as in that case, the child's best interest should be considered. But in that case, she should be able to get visitation rights, just like any glorified sperm donor who never showed any interest in his child before is able to.
Simply ignoring any surrogacy agreement when it comes to parental rights might be sufficient to cover most cases, but there is of course the problem of the financial burden, that the birth mother of any child bears. If she keeps the child, then the financial burden of that would be added to that of the pregnancy, and that's a problem - especially in such cases where the gene donors decide they don't want a disabled child.
That could be covered if genetic parents were held responsible, for which it would be necessary to hold fathers responsible in a much more efficient way than is done at the moment.
It has always been very easy for men to exploit women in order to spread their genes. Surrogacy is just enabling women to join in the exploitation of other women.
I think that the safeguards we need against that sort of thing are much the same. It is just that sex is much harder to control than IVF.
If people who pay women for surrogacy knew that a) they may not be allowed to keep the baby and might only get the visitation rights that are traditionally given to genetic parents who aren't living with the birth parent, and b) they won't get their money back in any case and c) might have to pay child support - then I hope that would discourage such horrible behaviour.
Or is the problem only that people don't know about those laws?
We still need an universal basic income to make sure no woman is ever poor enough to have to resort to surrogacy OR prostitution, OR organ selling. But I don't have much hope that this will be the case anytime soon.