I kinda feel a bit sorry for him now (after trashing him, lol).
He's been a complete arse over the past five years or so, but it is slightly horrifying when someone heads into an obvious train-wreck situation.
I agree with one of the above posters who mentions a personality disorder. Isn't he prone to depression, and threw himself into the Passion of Christ film in order to stave off suicidal feelings?
He kinda seems to have oddly extreme views on stuff (racism, religion, etc) - maybe to do with his upbringing (isn't his Dad a racist loon?). Maybe the staunch Catholicism triggers extremism directed towards himself as well as others?
[over-analyses it all....]