It's Hollywood, it's real enough for them.
When you live in a fantasyworld, movies are real (When they present your point of view only.)
If this movie were making a conservative political statement, the movie would be highly criticized for grossly misleading and unnecessarily scaring the public. Mel Gibson movies are constantly trashed for not being 100% based on facts. This movie ridiculously exaggerates reality worse than the phoney global warming computer models it is loosely based on. But the only people it will 'sway' are the ones who already think Bush is Hitler.