You brought the Constitution into this. I did not. The Constitution does not give people license to practice perversion. The sodomy laws were at state level.
It is the jurisdiction of the states to condone or outlaw specific behaviors as they see fit, but only if it does not violate the Constitution.
You have that rather bassackwards a bit.
"The way to have safe government is not to trust it all to the one, but to divide it among the many, distributing to everyone exactly the functions in which he is competent....To let the National Government be entrusted with the defense of the nation, and its foreign and federal relations..... The State Governments with the Civil Rights, Laws, Police and administration of what concerns the State generally. The Counties with the local concerns, and each ward direct the interests within itself. It is by dividing and subdividing these Republics from the great national one down through all its subordinations until it ends in the administration of everyman's farm by himself, by placing under everyone what his own eye may superintend, that all will be done for the best." Thomas Jefferson
The Feds are taking away states rights that they were never meant to have and calling it their right. See what Jefferson said again :To let the National Government be entrusted with the defense of the nation, and its foreign and federal relations..... The Feds have no business with this and neither does the Constitution.
And giving homosexuals any special rights as a group tears at the moral fabric of our nation. We have enough immorality.
No state law may violate the original Constitution though. Which is why it was written to limit government, which includes state governments. No state, for example, can make a law that says you can't own a gun (although they're doing their damnedest anyway), because the original Constitution says the government may not take away that right. This isn't a contradiction of Jefferson's statement but a support of it.
The jurisdiction of the states is "Civil Rights, Laws, Police and administration of what concerns the State generally."
Somewhere along the way the Feds usurped States rights - probably the fall out of the Civil War.