Michael Moore would not recognize competency if it came up behind him and kicked him in his very ample butt so hard his nose started bleeding. He is a very cunning person who has wormed his way into trash film making, by finding some wealthy donors, making very exaggerated caricatures of scenes from everyday America, and weaving them into semi-fictional works about a world that never was, and logically, could not exist. These film productions are cartoons, showing imaginary people doing improbable things, and real people behaving in ways wholly inconsistent with all the history of what they have ever done or been. The visual image is vastly more powerful than the spoken or written word, and has the potential to supplant reality. Sure, there is "freedom of speech", but apparently this freedom is being seriously abused here, by the detachment of historical and verifiable fact from the discussion and replacing it with complete flights of fancy.
Only his coroner knows for sure.....