The fear that every US action “a) turn every Shia in the entire world entirely against the United States for the rest of history” presumes Shia as a timeless and uncontested identity. However, the history shows that defeated Japanese and Germans attributed the defeat to their own militarists/fascists, and embraced new identities that are not really affected by their defeat.

Yes, the people thinking of themselves as Shia ahead of everything else will hate US, however a very significant number may choose to think of themselves as Persian, Lebanese, American, Australian or Israeli. That would be a very positive step, well outweighting the hate of already hateful and derange morons.