I agree
Giving up is usually the best stragegy.
It's not exactly giving up. It's more a case of reframing the rules to make their games irrelevant. Marriage is a sacred institution that should be protected fram arbitrary redefinition. I don't think we can win in all 50 states forever, and under the "full faith and credit" clause any state that recognizes marriage is required to recognize whatever another state pretends is a "marriage".
Article IV, Section 1: Full faith and credit shall be given in each state to the public acts, records, and judicial proceedings of every other state. And the Congress may by general laws prescribe the manner in which such acts, records, and proceedings shall be proved, and the effect thereof.
It's better to have marriage as a religious institution only, but still with all the religious significance that marriage has always had, than as a legal institution that also covers something that has been added by a few judges in one or two states. I believe that we should rewrite the rules to make the battle go away.