CNN is reporting that seventy percent of blacks voted for this amendment.
Without the black vote this amendment would not have passed.
Whites were slightly leaning towards it, while asians and latinos were split.
Shannikka at Daily Kos has something interesting to say on this:
Analysis of Black Vote Results on Prop 8
Bottom line, based on the writer's analysis of the number of registered black voters in Californa, even if ALL of those black voters had voted "yes" on 8, Prop 8 would have won by 80,000 votes.
I don't know about the accuracy of the population counts, or the validity of the analysis of the numbers (I leave that to the statisticians amongst us), but if these numbers are in anyway valid, I suggest that the "the blacks are responsible" argument should be dropped.
Even if the numbers are completely off, the fact remains that the vast majority of voters who voted against Prop 8 were white.
Draw whatever conclusions you will from that.
As to the "unfairness" of targeting the LDS Church, I submit that providing 50% to 70% percent of the funding of Yes on 8 removes the "un" from the equation. Especially in light of the (from a Catholic perspective, I don't know what else to call it) pastoral letter published by the LDS hierarchy back in June, which strongly encouraged Mormons to donate & be active in the fight against Prop 8. The out of proportion effect (in comparison to their actual numbers) of the Mormon participation in the Yes on 8 campaign feeds right into my previous statements re: accepting the consequences of entering the political arena.
Specifically, if a Church (or anyone, for that matter) enters into a political discourse, they must be prepared to accept the consequences of someone disagreeing with them. Which explains why there are demonstrations going on in front of Mormon temples across the state. Yes, I'm angry at the Mormons who voted for Prop 8--but I'm also angry at EVERYONE who voted for it. From my perspective, it's not a religious issue, but a fundamental rights issue. ALL of us are affected, one way or another.
Ultimately, I don't think any one group was responsible for the passage of Prop 8. I believe the No on 8 campaign dropped the ball--for example, by failing to show that, hey, married gay couples aren't all that scary. (I simplify). Catholics, blacks, Hispanics, Mormons, Asians, Evangelicals of various stripes, Whites and, yes, gays and lesbians, all share that responsibility. Proceed from there, without bias or bigotry.