For me a heretic is a person who says twisted things about who Jesus is and what He has done. Nobody has perfect doctrine besides calvinists.His views on heaven and hell do not conform with scripture.
He has said: "The Bible has caused so much damage. In many ways it has been an agent for dragging everything backwards."
Like I said, he's a heretic.
But I would not be interested in sitting under someone who was not keeping scripture number 1.