Should marriage supporters 'target' Mormons over Proposition 8?

Author Sheldon Rampton posts a thoughtful diary at Daily Kos. I've read one of Rampton's books (Toxic Sludge Is Good For You: Lies, Damned Lies and the Public Relations Industry, co-authored with John Stauber), but I didn't know he was LDS.

The question remains, of course, whether Hamlin is right that supporters of gay rights should refrain from "directly targeting people in their private life" by protesting and arguing with individual Mormons who have participated in the church's anti-gay campaigns. Certainly protesters should refrain from belligerence, threats and intimidation. However, the only way Mormon attitudes are going to change on this issue is through confrontation. (And even then, attitudes will not change easily or quickly.) [...]

As a high school student in 1974, I felt privately uncomfortable with the [LDS Church's] "Negro doctrine," but like many members of the church, I didn't think about it very much. It didn't become a personal thing for me until one day in gym class, when a black kid came up to me and angrily said he had heard that Mormons didn't think blacks like him should go to heaven. What did I think of that? He wanted to know.

Technically, he was wrong about the theological details. Mormons actually believed that blacks could go to heaven. They just couldn't have the priesthood. I tried to make that distinction the basis for a joke to defuse the situation. "No, we think you can go to heaven," I replied. "We just think you don't deserve to." The black kid glared at me for a minute, and that was the end of the conversation. Today, more than 30 years later, I don't remember his name, but I remember the moment very clearly. I imagine he walked away thinking he had wasted his breath by even talking to me. He certainly didn't get a satisfactory reply. But the conversation had an effect on me. It left me feeling profoundly shaken and uncomfortable about a church practice that until then had seemed like a theoretical abstraction of no particular relevance to my own life. Over time, that discomfort helped inform my thinking and changed my attitudes.