I don't think you're asking in good faith, so I won't spend much time on this, but in case I'm wrong here's a quote from Wikipedia:

"According to former CIA analyst Michael Scheuer, who led the CIA's hunt for Osama bin Laden, the al-Qaeda leader was motivated by a belief that U.S. foreign policy has oppressed, killed, or otherwise harmed Muslims in the Middle East,[56] condensed in the phrase, "They hate us for what we do, not who we are.""

You can also look at the intellectual legacy of Ayatollah Khomeini (who succeeded the Shah who succeeded Mohammad Mosaddegh) and how that ties into al Qaeda's ideology.