We all believe it is up to the states to decide; however, Federal Judges are deciding.
What are our elected leaders doing about that?
Well on homosexual marriage our leaders are doing nothing. They are just letting the courts impose homosexual marriage as some sort of civil right, so that there is no legislative way to stop it,,short of a constitutional amendment.
On marijuana, I expect court cases could arise, due to federal law making it illegal but some states making it legal. Will judges similarly say you have a civil right to use pot??? We will see.