When (evangelical) Christians Become The Issue

At The Heresy the other day, Leighton argued for more dialogue and diplomacy by Christians (especially evangelicals) rather than rude, judgmental moralizing. One commenter passionately suggested that some issues aren't just issues, and can't be ignored or compromised. He used the issue of abortion.

As per Christians, he used the typical devices: a sense of urgency/intensity, a scripture here, a hard blunt stance. Isn't this what makes people cringe? Isn't this what alienates people from (evangelical) Christians, especially if they talk about social issues?

But sometimes some Christians are "fundamentally different, not likely to change." Rejection or reservations by others only seems to make the stance more entrenched/serious. It might feel and seem safe and secure, but it also makes it easier to be naive/wrong/misled (might I say sin?). What if it becomes one-sided or intolerable? That wouldn't make it right. Yet some Christians seem willing to look extreme than sensitive, and that's the issue!