Humm, well, I suppose Bush isn't the stereotypical holy-roller type, but the whole "god saved me from demon rum" thing sort of goes down wrong with me.
Rub: its good to see you acknowledge your point #2 and #3 above, in return I'll grant you that there have been some shockingly aggressive politicians in the US over the past 60 years who have abused public goodwill in order to wage some shockingly aggressive wars before finally being reigned in. (Bush included -- btw, you should see his latest approval ratings).
Anyway, the real question is how best to constrain abuse of power as we try to build a better world. A more robust UN is a start, but ignoring the role played by fundamentalist religious ideology in years to com would also be a mistake. I don't think these are harmless guys with firecrackers.