The states have jurisdiction, but only within the limits of the Bill of Rights. Wich, as we have seen, paints with a very broad brush the scope of our individual rights.
So long as the expression of those rights does not conflict with the rights of others (and no, the "right not to be offended" doesn't count), the states are on shaky ground when they try to legislate one particular morality.
>sigh<
That should, of course, be "Which, as we have seen,"
Nobody has a right to engage in sexual perversion (HOMOSEXUAL SODOMY), every citizen is forbidden by state law to do so. There's no special group that has the right to do so and another group forbidded, we're all equally forbidden by "due prosses"- state legislation!