I'm not religious so in many ways I don't care
But if you want to be fair marriage is a religious ceremony that should be allowed to marry whoever they want and they really don't want to marry same sex couples
Who are they to demand what peoples religions can do?
The problem is it is endorsed by the state and given advantages
There are good reasons for that
However... if you want to be fair the best you can do is ask for is marriage to be left to the church and they can marry whoever and no yelling of bigotry means anything
They have no right to interfere
If you want a civil union endorsed by the state with advantages than so be it anyone can do so if desired
But marriage....NO
If governments would be deregulate marriages all this wouldn't be an issue because the buck would be passed to the religious organizations to deal with.