The Sage of Paradise Says:
Oklahoma has got it right. Marriage is Religious rite, which is not a constitutional sphere for the state. States should issue a permit, not a license. I would handle any state interests: Health, residency, inheritance, spousal privileges,etc. The clergy would be free to exercise their religion as they see fit. You can DIY without clergy if you want, do a Druid wedding, a satanic ritual , or a Hippy wedding on Mt. Tamilpias.