Marriage is a concept established by religions to sanctify a bond between a man and a woman creating one entity. That entity, with or without children, is a family. The intention is to produce children who leave to start their own families. Government intervened to complicate matters by rewarding married couples with benefits which increase as the family grows. Now, "partners" have a pretext to tap into this pool of benefits. The problem is that religion recognizes only men and women as partners because only opposite sexes can produce a family and that is the purpose of marriage. Same sex marriage is an attack on religion.