I attempted to answer this question in a post today on the Christianity Today blog for women (Her.meneutics). It's not an easy answer, but it's something we all must think about, especially as homosexual behavior becomes increasingly normalized.
In the post, I said:
"Christians must bridge the gap between bullying and the cry for tolerance. We cannot turn a blind eye to sinful behavior of any sort, whether it’s homosexual behavior or hateful bullying. And we also must clearly define bullying, focusing on physical and verbal abuse rather than simple disagreement with another’s actions."
Read the rest here.