I believe it is wrong to use in vitro fertilization or surrogacy unless you are married.
That's nice. I believe it is wrong to watch The Jersey Shore but I don't get to take away anyone's right to do so.
Also, gay couples want to get married which would solve your dilemma with unmarried people using in vitro fertilization and surrogacy.
Why should you be able to get medical insurance benefits for children that are not yours?
And interesting that one of the benefits is to help with one of the parents staying home with the children since liberals are the ones who think it is essential for everyone to work.
Let's say a homosexual couple exists where one has the potential to earn $100k while the other could earn $30k. The couple decides they want 2 children. Since the one that earns $30k would barely earn enough to cover daycare, they decide to have that person stay home with the kids.
So this couple has their two children via in vitro or surrogacy and each child is the biological offspring of one spouse or the other.
Under current health care laws, the child of the spouse that stays home would be ineligible for medical benefits under the other spouse's insurance. Some states have enacted "domestic partnership" laws that alleviate the issue, but some conservative states or moving to remove them or have already done so (such as North Carolina).
I have said the state grants benefits to married couples. The question is why should they?
I agree. "Marriage," in the common vernacular, is traditionally seen as a religious ceremony. I'd prefer the government didn't recognize "marriage" at all, only civil unions between two consenting adults. The recognition of this civil union would only be for tax purposes, for issues of inheritance, and custody of children brought under such a union. I'd also limit the benefits to two adults only so polygamous couples still had the ability to gain the same benefits but not to stack those benefits beyond two people.
The word "marriage" would still stick around in our culture to describe people that have formally entered into a civil union as recognized by the government, but the government would cease recognizing or enforcing any religious aspects of "traditional marriage" such as banning homosexual marriage.