Like virtually every political step Israel has taken since 1991, the Disengagement from Gaza and the blockade of Hamas was done under the assumption that if Israel took the most moderate path possible (short of actual national suicide) the world community would be reasonable about it and work together to isolate the "extremists" and stabilize the region. That assumption has been repeatedly shown to be false. The world is not interested in being reasonable. It has no litmus test that Muslim terrorists can ever fail, and no test that Israel can ever pass.