The Constitution established the Federation. But, by specifically reserving unto the separate states that which is not specifically written into the Constitution, the laws of the States, including statutory and common Law, and marriage and property, are established under the Constitution.<quoted text>
Yes it is true! What is wrong with your thinking? You're the one that stated with error... "The civil authority for same-sex civil union and the benefits that will come by such unions are gauranteed in our Constitution." NO THEIR NOT. Relationships between citizens of the USA have never have been guaranteed as a right/privileged.! Not even for opposite sex marriage/relationships.
Not until SCOTUS "redefines" what the constitution says concerning a matter at hand and, using modern laws connected to the matter passed by states of recent decades with what the constitution "might have to say/mention directly/indirectly will anything be established/guaranteed as a right/privilege.
And if you had read US law, you would know laws and ordinances were written for marriage from the time of the first 13 colonies. But you would also know marriage was never written about and or defined in any of our legal documents set forth in the 17th century. Not in the Constitution, Not in the Bill of Rights, not in any of them.
Prove me wrong if you think you're so correct! Paste me the statements from the constitution, bill of rights etc written in the 17th century that define and spell out what a marriage is between two American citizens. But you won't because you can't. That information WAS NEVER DEFINED.
So you are totally and absolutely incorrect thinking that "The civil authority for same-sex civil union and the benefits that will come by such unions are gauranteed in our Constitution."
When SCOTUS reviews and defines what marriage is between two citizens of America, then and only then will the constitution say something specifically of marriage.
This is why the SCOTUS has the authority to determine civil rights, including affirming the rights of individuals to take civil union, including same-sex civil union.