mousethief,

I suspect your wish is what is mostly in place in many countries.

In many of the countries, where gay marriage is permitted by civil law, it is like you state. Government recognizes both type of marriage, those within a church (christian or otherwise) and those outside. And, as stated earlier, a few christian churches have no issue with performing gay marriages (but, not the RC church....which is its choice).

Most issues relate to those inside some christian churches opposing the state recognition to gay marriages...and the use of the word marriag, which they claim (incorrectly) that the word belongs to christians (but, not to those who perform christian gay marriages, of course. Those that condone gay marriage push for the "word civil" union for gay marriage. This, of course, lessens the full meaning of the institution to gay couples.

I am not aware of any government, where gay marriage is legal, who is dictating the conditions of to traditional christian church marriages. However,limits do exist in some countries on the terms of gay marriage. And, some christian churches, in some countries, have intervened in attempts to stop civil legislation to allow gay marriage.