In fact all of it does. It's not the Presidents job to ensure the State takes care of its people at all. If it's in the constitution I'd love to see where. Prevention of hurricane damage would not be acceptable Federal spending. Once the bloody thing had hit, it was a bit late to take care of anyone. Blame Louisiana for not being prepared, but after it hit, blaming anyone for the aftermath is like blaming Chris Evans for having ginger pubes. A lack of preparedness was the cause of the problem.
As for "saving people from a tyrant" vs taking care of his own, I believe I adequately explained the geopolitical rammifications of that attitude. In fact, but for America "saving people from a tyrant", there's every possibility we'd both be speaking German right now. A cliched argument but nonetheless true.
True, America didn't "save" Europe but it was an allied effort and unlike Britain and Russia, America was fighting a war which didn't technically involve her. Hitler's declaration of war on America was never serious and had she wanted to, the US could simply have focussed on bombing the fuck out of Japan and leaving the Europeans to take care of their own mess.
Katrina was so overblown by the media and the left-wing. It killed less 2,000 people! Unless we're being racist and suggesting an American life is worth more than that of a foreigner, what about the Asian tsunami which killed 100 times that many people? Should America have sent more relief efforts there?