He's obviously someone who should be watched very carefully by sane people, mostly because he can be regarded as crazy and dangerous.  He said that Israel should be wiped off the face of the planet for one thing, and then in order to try to backpeddle from that he said that they should all move to Europe.  This is obviously a guy who might not be able of making reasonable decisions, especially when he sees the world in such a unreasonable viewpoint.