When September 11 happened, I was working for VDARE.com and did a column asking if Americans would “wake up and smell the coffee” about immigration. They didn’t much, because they weren’t allowed to.
The President at the time, George W. Bush, with his family association with oil companies, was very much an Arab sympathizer (the Saudi Ambassador to the US, Bandar bin Sultan, who spent a lot of time with the Bushes was actually nicknamed “Bandar Bush”.)
Bush’s first concern after the attack was to visit a DC Islamic Center and declare Islam a religion of peace.
And an obvious step, after 9/11, would have been to curtail Muslim immigration—stop giving immigrant visa to at least those countries that the State Department lists as “State Sponsors Of Terror”.