Take the fight to them.

[kılıç_mehmet]

I still don't think that you can engage these people with what you have to offer now. Evangelism is not very different from Humanism. It simply has a different take on humanism under different context. So you're not really offering them anything new, in my opinion.

You know how you sometimes meet someone, and you have to ask yourself how they manage to stay so ignorant for so long? It's because everyone's too polite to say anything. Sometimes they're not actively rejecting something, they're just ignorant of it, many of us here were once religious, but eventually we came across information taht changed our minds. I would bet many of us voted differently after that change.

Its not about being polite, though I'd still state that you ought to be polite, even if your message is agressive. I'm always agressive in ideological discussions as you might have figured. However what I'm saying is, that your words will have little meaning even if you throw away your manners, because I frankly don't see anything that you can offer to these people for them to re-consider their position for even a second.