Answer: Women's rights.
In the time and place we now find ourselves, the most effective place to attack — the most effective place to discredit orthodox Islam — is on the topic of human rights for women. Islamic doctrine, as applied in Muslim-majority countries all over the world, and even as applied by immigrants in free countries, measurably and inhumanely restricts women's rights. Islamic fundamentalism and human rights for women are incompatible. Where you have one, you will not have the other.
But when we concentrate our forces on this decisive point, we must do it in a way that unites a huge majority of us, including some of those who still naively think Islam is just one of many similar religions. So this has to be done skillfully.
I believe that's what Ayaan Hirsi Ali has done with the documentary, Honor Diaries. The production value of the film is very high. The women chosen for the film are acceptable to mainstream multiculturalists. The film doesn't feel anti-Islam. I think most of the people who see this film wouldn't feel it attacks Islam. And yet it effectively exposes orthodox Islam as a cruel, outdated, extremely misogynistic ideology that should be marginalized, discredited, and disempowered wherever it shows its ugly head.
In other words, Honor Diaries has the potential to push a major axiom of the counterjihad movement into the mainstream. The film may cause this fundamental position of the counterjihad community to shed its "fringe" stigma forevermore.
The approach is brilliant and the film is outstanding. We should use it as a weapon against the ignorance that now keeps our population vulnerable to creeping Sharia.