They probably would have cheered him had he dressed up as Sadamn Hussain.
The liberal western world is upset that it got fooled by Hitler once, and fooled by the Japanese and fooled again by Stalin.
Hitler's crimes notwithstanding, he was not so stupid as to believe Stalin himself.
FDR embodies the post-Wilsonian spirit of prostitution of the West. It is about force of seduction and communication, a Nazi fascism without the weapon but with pure words that virtualy kill in their slander and unfairness. It is about coddling with all kinds of terrorists with pseudo cases and pseudo causes, calling and prosecuting those retaliating against Muslims, gay pedophiles and what not the provokers of those terror acts, and thus people uniquely liable for hate crimes legislation, legislation solely aimed at protecting the foreignizing racists of this world, many of which are highly attracted to bureaucracy, since bureaucracy is not about helping people, but about making oneself foreign and unaffected from their problems.
Aren't many of these outraged people the same folks who called Geoge Bush a nazi?
Speaking of which, if Harry had gone to that costume party dressed like George Bush, the EEE-UU would be calling for an international tribunal.
The only reason they are acting upset about this is to cover for their current stance on Israel. They are appalled by what happened to the Jewish people years ago. But don't care what is happening to them today. How could you expect anything less from people over there.
No, there would not be an outcry from the libs if Harry had dressed up as Stalin, Mao, Castro, Che, Saddam, or any other person that they admire. Why they admire these folks so much and hate Hitler is beyond me, but they do. They're jsut different branches of the same tree. (Much of liberalism is based on personal hatred anyway.)
This is a mountain from a molehill, anyway. It's not as if Harry IS a Nazi. He wore a Nazi costume to a costume party. It was inappropriate, stupid, and over the line, but you know, people Harry's age tend to do things that are inappropriate, stupid, and over the line. Then tehy learn from the experience. He has apologized for it; it's time to move on.
Maybe he should turn up dressed as Che Guevars, just to call these people's bluff.