Among the "leftist" women shown are: the late Princess Diana, Hillary Clinton (former First Lady and Democrat Presidential nominee), Camilla Parker Bowles (wife of Prince Charles), Nancy Pelosi (Speaker of the US House of Representatives) and Dr Condoleezza Rice (US Secretary of State).
Condi Rice? A leftist? How is that? I guess it's because she's the wrong colour ...
Anyway, the hijabs worn by these women don't look too hijabish to me. In fact, they look more like loosely-fitted scarves of the type my mum wears on religious occasions. Except that you can generally see through my mum's dupatta, an example of which you can see below (though it isn't a picture of my mother!)

However, there are other kinds of hijabs for which I'm sure Mr Pipes would (or, if he was intellectually honest, should) feel equal hatred toward ...

Jewish woman in promotional poster of award-winning Israeli documentary ...

Orthodox Jewish women pose for a photo at a wedding party ...

Jewish woman seated with her Muslim sister ...

Jewish women lighting candles to commemmorate the Holocaust ...

Ethiopian Jewish women in worship ...
I wonder what nasty things Mr Pipes will say about the hijabs of these women.