That's simply not true. Whatever else you want to say about feminists, they were campaigning against the Taliban's oppression of women long before 9/11. Mavis Leno, Jay's wife, was a leader in that movement.
Here's a link to a speech she gave in 1999: http://www.commonwealthclub.org/archive/99/99-04leno-speech.html
she's not really a leftist is she?
Jay Leno is very balanced in his comedy.