I don't know how you can reasonably respond to accusations that President Obama doesn't love America from some washed up egomaniac. But this strikes me as about the best you can do:
“I can tell you that it’s sad to see when somebody who has attained a certain stature and even admiration tarnishes that legacy so thoroughl. There’s no element of schadenfreude that people are feeling around here. What people are feeling is sorry for Rudy Giuliani.I think, really, the only thing that I feel is to feel sorry for Rudy Giuliani today.”
It is kind of pathetic. On the other hand he accurately reflected the misbegotten beliefs of millions of Americans. Which isn't pathetic, but ownright creepy.
Giuliani, by the way, doubled down on his comments saying that Obama is heavily influenced by communists:
“He doesn’t talk about America the way John Kennedy and Ronald Reagan did, about America’s greatness and exceptionalism,” said Giuliani.
“He was educated by people who were critics of the US. And he has not been able to overcome those influences.”
Giuliani also implied he was the only one with the chutzpah to call out Obama, saying: “Somebody has to raise these issues with the president. Somebody has to have the courage to stand up.”
[...]
In a previous interview with The New York Times, Giuliani said his recent comments aren’t racist, because Obama was brought up by a “white mother” and went to “white schools.”