It is indeed. The best response to those people is to reply that it is not the proper role of government to give any sort of approval at all.
Thing is, the leaders in the sexual anarchy/homosexualist/polyamorist/etc. movement for government recognition desperately WANT the government to give approval so they can use the state to punish those who disagree or disapprove. That is most definitely NOT a “live and let live” kind of ideology or lifestyle.