I concur. If Giuliani is elected, he'll face two ruthless and fanatic enemies--one in Islamofascism, and one in the Democrat congress. If we don't have a strong majority in congress, he won't be able to get funding for the war unless he "compromises" with the Dems--meaning he'll have to give them what they want on issues like gun control, abortion, non-conservative judges, etc. And since all indications are that he's in favor of those things anyway, I can see huge inroads on our deteriorating freedoms in return for too little money for the war, effectively rendering us incapable of fighting it.
The only favorable thing about Giuliani, IMO, is his determination to fight for victory against Islamofascism. But his liberalism on all other issues would, I believe, result in his inability to carry that fight forward.
Another question, which I believe correlates to your statement, is whether God can even be assumed to be on the side of a nation that permits the slaughter of its most innocent and defenseless citizens.