..Windsor address federal law and not state law.
You should write a letter to the Chief Justice of the United States Supreme Court who says you are wrong.
Chief Justice Roberts writing on the scope of the Windsor decision:
"But while I disagree with the result to which the majority’s analysis leads it in this case, I think it more important to point out that its analysis leads no further. The Court does not have before it, and the logic of its opinion does not decide, the distinct question whether the States, in the exercise of their “historic and essential authority to define the marital relation,” ante, at 18, may continue to utilize the traditional definition of marriage."
Yet as you well know, the Court used state sovereignty on the question of gay marriage as THE tool to strike down part of the federal DOMA law. So on one hand you are all about state sovereignty on the question of gay marriage. On the other hand, you are not.
The Court didn't say "because we've determined federally that gay marriage is a civil right, we are striking down part of DOMA". They said instead, "because states are the ones to decide gay marriage and not the fed, the fed must abide by what the states say".
That's what Windsor Found constitutionally. And that's why the stay in Utah was granted by SCOTUS recently..
SCOTUS did not say that. You are totally making that up. This was the holding:
"DOMA is unconstitutional as a deprivation of the equal liberty of
persons that is protected by the Fifth Amendment."
The 10th amendment regarding states rights was not listed a single time in the decision. Perhaps you were confused because of this:
"
Subject to certain constitutional guarantees, see, e.g., Loving v.
Virginia, 388 U. S. 1, “regulation of domestic relations” is “an area
that has long been regarded as a virtually exclusive province of the
States"
The court also clearly states this:
"State laws defining and regulating marriage, of
course, must respect the constitutional rights of persons,
see, e.g., Loving v. Virginia"
The bold sections are key. Although states have a right to regulate marriage (which I do not dispute and the court rightly stated), that right is
limited by constitutional guarantees of due process and equal protection. The question "do same-sex marriage bans violate those certain constitutional guarantees" was not asked of the court, nor did the court respond to it in any way. To say it did is either (a) an example of you deliberately lying and distorting the truth, or (b) an example of your ignorance of this particular decision and how judicial rulings work in general.