"The Holy Spirit is convicting people to come to Christ through his ministry and I find it extremely odd that some professing Christians have a problem with that fact."
The problem is that he is wolf in sheep's clothing. Jesus warned us about men like him.
http://www.crossroad.to/articles2/news/9-purpose-resisters.htm
You are probably referring to Matthew 7:15 where Jesus was referring to false prophets. The Holy Spirit is convicting people to come to Christ through Warren's ministry, and according to Jesus, a bad tree cannot bear good fruit.
Jesus warned us about men like him.
Jesus said some interesting statements about the Pharisees as well.