Muslims face more bigotry and religious intolerance from Non-Muslims post 9/11. A few terrorists pretending to be fundamentalist Muslims paint a bad name for Muslims around the world. I believe the 9/11 terrorists may not have been Muslims but impostors pretending to be fundamentalist Muslims.
No one likes to be an outcast and be rejected and alienated from society. Muslims who are mainly average citizens face persistent harassment and intimidation from ignorant fools fooled by the media/government.