Many people hold the view that OBL's real enemy is the Saudi royal family. He has personal scores to settle and preaches they are not fit to be defenders of the faith and custodians of the holy mosques since they allowed the "infidel" american army into the kingdoms. Aside from American presence and perceived interference in Islamic countries, his gripe with the USA is its staunch support of the House of Saud which allows them to keep their hold on power.