I’ve asked myself that.
On the one hand, i want to say No, and welcome Mormons who voted against the measure.
On the other hand, when you voluntarily align yourself with an institution like a church, especially one in which so many decisions are made—and actions taken—on behalf of all adherents by the people at the top, then you have to accept that you will be associated with that decision. Especially if you choose to remain with the church even when it does things you disagree with.
I feel the same way about other groups, whether they be political parties, social organizations, whatever. If you are a member, and your group does something you don’t like, you can leave, or you can stay and accept that you will, in some measure at least, be associated with the actions you opposed.
I guess when i said the church was my enemy, i was specifically referring to the people who pushed this, and the institution as a whole. But i’m not feeling especially charitable right now.
I’ve always been a live-and-let-live guy when it comes to religion. In my American history classes, i teach my undergrads about the significance of religion in the history of the United States, and spend some time specifically dealing with the origins of the Mormon church, with Joseph Smith’s early days in New York and Ohio, the persecution he faced there, his troubles in Missouri, his death in Illinois, and the subsequent move to Utah under Brigham Young. The Mormon church is a fascinating part of American history, and perhaps the first and only truly (non-Native American) American religion. But right now, i wish it were consigned to history, rather than surviving to blight people who have never done it any harm.