Why is it so important to base this issue on history?<quoted text>
The key word misused here is "always". Simply because it was done in the past, doesn't automatically mean it shouldn't be done now, or should be. If SSM is such a hot idea, why having societies, across time and place, incorporated it into their societal structures? Why didn't it naturally develop alongside of both monogamous, and polygamous, opposite sex marriage?
I can easily go back and find that major cultures and society utilized slavery from beginning to end. It's still an issue today--some 27,000,000 people are estimated to be enslaved today around the world.
But OUR society--our country--DOES NOT condone slavery.
If we were creating policy based on what history supported, then (using your argument) there should be legalized slavery in the U.S. today.
You cannot base your arguments about how gays have been treated throughout history as an argument for how we should be treated today.
We have modern medical findings and contemporary beliefs about gays and lesbians. THAT should be the basis for how we go forward.
Same-sex marriage SHOULD BE based on its own merits--not on how history has treated the matter.