"what is behind [efforts to ban gay marriage] is anything other than a majority imposing its beliefs on other people." - Mohler quoting Michael LindenbergerI actually disagree with Mohler in this case. He is right that our civilization stands on marriage (marriage creates the family unit, families make up nations). However, this alone is not reason sufficient to protect marriage - if our civilization chooses to self-destruct (by destroying marriage), that is their choice. No amount of reasoning will change their course.
Only the Gospel can change hearts and minds.
This is a holdover of post-millenialism.
Post-modern culture must decide where it is going. Without absolute authority (from God), every law is just "a majority imposing its beliefs on other people".