Why do people oppose Muslim mosques?

People oppose almost anything Muslim anymore. Its all because of a few very very radical terrorists (who just so happened to be Muslim)after 9-11. People should learn that Christianity/Judaism/Islam are "Abrahamic Faiths". THey all originate from Abraham, all believe in the same One God, but they just have different cultural backgrounds. So, people oppose Muslim mosques because of 9-11 and terrorists who happened to be Muslim. Since then, people have gotten it all wrong about them..