I can't remember if the main character was the anti-Christ or not but he was a very bad man who brainwashed people I saw this one scene from this movie as a young girl and it almost disturbed me to see but I always wanted to watch whole film the one scene I do remember was the man talking to a little girl he didn't know and pointed to a homeless man across the street told the girl something like the bum wanted to die or he didn't believe in god so he is a sin for living as the bad guy and little girl hand in hand cross street he dumps gasoline on the homeless man and has the little girl set hi on fire... I'm pretty sure it's a 90's film but really wanted to see the whole movie?

Sounds like it could maybe be Bless The Child