From a Catholic perspective it is the couple who are the actual ministers of the sacrament. The priest is there present only to witness the marriage and to give the Church’s blessing. The need of the priest is not of the essence of the sacrament and was only required after the Council of Trent in order to assure that marriages were publicly known and entered into freely. The need for the priest to witness a Catholic wedding is a question of positive law and not doctrine. It is also only applicable to Catholics. The essence of marriage is the free exchange of vows by the couple.
Marriage is a sacred covenant between the couple and God.
If the ceremony didn't involve God it not a wedding in my opinion.
The homo's can call what they are doing whatever they want, but it's NOT a wedding!