Not the right attitude. I want everyone to stay and think about the terrible mistake they are making. Then go to confession and help build up the Church Militant. I want everyone to go to heaven. Even people I don't personally like.
Pray for him and his ilk, yes. Enable him and his ilk, no.
"And we charge you, brethren, in the name of our Lord Jesus Christ, that you withdraw yourselves from every brother walking disorderly, and not according to the tradition which they have received of us." 2 Thessalonians 3:6