> Do you propose that tax benefits for couples should be abolished?
Yes. (I am married)
> How do you propose to handle Estate planning?
Contract law. Before you get married, sign a contract that outlines everything.
> Health and other insurance benefits?
Nothing to do with government or at least, should have nothing to do with government. The insurance companies can structure it however they want.
> Managing the custody of children of divorce?
Contract law. See above. Marriage at its heart is a business arrangement. You share resources and work for a common purpose. It's almost like you're starting a company with a partner.
Would you start a business without signing a contract that didn't outline not only how the arrangement would function, but what would happen if it were to come to an end? Of course you wouldn't.
> How exactly do you imagine the government not being involved in marriage?
It can be involved in marriage through contract law. The same way it's involved in any business arrangement where a contract was signed.
In other words, if need be, one party can take another to court over the breach of a contract.
The issue today is that the government defines that contract. It specifies who the contract can be between (a man and a woman), specifies what happens when that contract ends, what benefits accrue, it essentially controls everything about that contract ... why not let the people choose what form they want their marriage to take? Why force everyone into the same universal contract that in the end doesn't really fit anyone properly because it's so unbelievably general?
> Because as it stands today, the government is inextricably a part of the concept of marriage
Unfortunately.
> the government must recognize a marriage in order for the benefits of marriage to work.
Resource sharing is by far the greatest benefit and it has nothing to do with the government. Yes, tax benefits and such stem directly from the government ... but that's about it.