No, I believe the Churches (ECUSA, ELCA, PCUSA for now) are being USED in the most degrading sense of that word in order to advance the homophiles real agenda, which is obtaining property, inheritance, and insurance rights. The ultimate sanction against their behavior is sin, so if the definition of sin is distorted so that evil is called "good"; why should state laws need to stand in the way of obtaining these "rights". By that logic the gay agenda becomes a "justice" issue and is compared favorably with MLK and the struggle for desegregation and voting rights.
Thsi is going on in all of the mainline Protestant denominations in which the property is owned by the church organization and not the local congregations. You don't see this type of push for takeover going on in the Baptists, the Assemblies of God, or other loosely organized churches that don't have a central authority. Taking over one Southern Baptist congregation isn't very profitable or likely.
Much better for them to get into the hierarchy of the Episcopals, the Methodists, the Lutherans, etc. In addition, they get a higher profile, since the mainline denominations are the ones that the media usually go to when they want opinions on a public controversy.