Government should be of the people and for the people. Not of the elite oligarchy. People are what determine the course of a nation, and a state. That is why we have voting. That is why we have representatives. If the Supreme Court were supposed to be the sole decider of legal and social issues, lets just do away with voting and let our council of Lords issue their decrees. People are the engine of law, for good or for ill. You ask if slavery was right when the majority agreed with it? I would argue that legally, it was right. Until the people decided it wasn't. A war was fought. Slave owners were punished. Laws were changed through the process. The people changed. The people voted. The law changed. If you don't agree with the democratic process, and would rather see and oligarchy's vison on the world forced onto a people through the fist of the state, move somewhere where that is the case. Here in America, and in it's States, the people vote, and the people decide law. The Supreme Court, whether state or federal, is tasked within interpreting law within the framework of the people's Constitution. Not just decide whatever law they feel is right. The people changed the Constitution. That is now the framework the Supreme Court must operate inside. They are not permitted to change their own mandate from outside of it. That sort of power is despotism.
I believe marriage should not be a government issue at all. If people wanna go fill out some form that dictates someone else has secondary power over their lives, like possessions, health-care, etc, let them indicate who that person is. As a Christian, I believe all marriages that are not Christian marriages are spiritually false and invalid, that includes Native American, Muslim, homosexual, etc. I also believe that has nothing to do with government tax and power of attorney law. While I don't agree with the degree Leftists have pushed the "separation of church and state" issue, I do believe this is one area where it applies. Lets get government out of marriage, and let people decide for themselves who gets their crap when they die, or who holds power over them if they're in a coma, and all that. And let's get rid of the tax benefits for "couples" altogether. That should solve the whole "we want the same rights" issue. Just get rid of special government rights for everyone. I would prefer that to recognizing what I see as a deviant and invalid "marriage".
As far as the "why do you care ig gays get married?" I wouldn't care if it didn't have anything to do with me. But it does. Especially if I have kids. If I want to raise my children respecting my religion, I don't want public schools or any other thing actively telling my children that my religion is wrong because it conflicts with their Leftist preaching. And yes, it does and will happen. They already try to pull that crap in states like CA, having sex ed classes for 1st graders talking about homosexuality. Conferring the title of marriage to that act will only embolden them to attack religion and our rights to raise our kids how we want even further. It would be far better to do away with state sanctioned marriage than to allow that agenda to progress further.