Originally Posted by listopencil
Then what's so important about the title to a heterosexual couple?
I'm not sure. Ask them and I'm sure they'll tell you. We do know one fact: it's the "null hypothesis". If you want to change something, it's up to you to make the case for change. The status quo doesn't owe any explanation. Either gays will make their case or they won't, but the traditionalists really don't have any burden of proof here whatsoever.
It works the other way for conservatives too. In 1935 social security was won by the progressives. Now, it's the null. It is incumbent on Paul Ryan et al to prove their case to change it.