Doug Wilson on evangelism:

The Bible not only teaches that the world is the way that God made it, and not the way we would like it to be, but the Bible also teaches that every man actually knows this, and that no man has an excuse for denying it. The world the way God made it includes the fact that sinners in that world take it upon themselves to deny the obvious, and have a vested interest in pretending that this is not what they did.

So it is not the job of the evangelist to step into that world of delusion, and try to find some sort of purchase there that will enable him to walk someone back out of that delusion. It is the job of the evangelist to declare, with authority, the reality of sin, righteousness, and the judgment to come. When unbelievers blow smoke, it is  not our task to try to weave something out of that smoke. It is our task to set up a big industrial-sized fan to blow it all away.