I rather doubt that the framers would have EVER allowed such language to be considered allowing this free-for- all you intend to saddle us with regards to just the areas of gender and marriage. Loving they would have no doubt allowed, Loving was reasonable interpretation of the 14th perhaps... we could certainly debate that... but there is no basis, except on the limited conveyance of specific citizenship and rights to African Americans across the broad spectrum of community in the US of those that had been previously "legally" enslaved but were now free yet in citizenship limbo.
The framers of the 14th were unwise to leave their language so loose, but then they could have had no idea to what extent the misuse, abuse and exploitation of their meaning would so falsely be undertaken. The license that the courts have taken with this and other areas of the Constitution, in which the federal government has absolutely no business, should be repossessed, returned to its proper place. We have all grown up assimilating these power grabs as something considered normal course, but where in fact, this is just federal and judicial overreach into areas best left, and intended to be left, to the states and to the people [ which was, by the 9th and 10th amendments being selectively incorporated under the 14th] by this very amendment confirmed.
This is actually, in my opinion, where the the courts SHOULD BE utilized, to protect the 9th and the 10th, amendments which have been long long since been neglected and therefore molested... especially that 10th, which accepts, appreciates and indulges the rights and powers of the true masters here.
WE, the People.