Why do anti-America people flock to America?

"US Homeland Security Department prevented two Muslim Brotherhood leaders from entering the United States (Arabic link). Kamal Al Helbawi and Abdul Moneim Abul Fotouh were supposed to attend a conference on the Muslim Brotherhood hosted by the University of New York.

Helbawi is a leader in the international branch of the Muslim Brotherhood. He is a British citizen and a prominent member of the Muslim community in the UK. He was asked to get off the plane that was supposed to take him from London to New York. Abul Fotouh is a prominent member of the Egyptian branch of the MB. His visa was rejected by the US embassy here."
Big Pharaoh