The ADL has always been liberal and was often engaged in very public opposition to anti-Communist groups (back when anti-Communism unfortunately often went hand-in-glove with anti-Semitism). But it's definitely jumped clear off the cliff with Foxman, whose loud forays into domestic issues with no Jewish connection whatsoever make the former leaders of the ADL seem like absolute moderates in comparison (though of course, "liberalism" back then didn't mean all the things it does today).
The writer is wrong on one issue. Foxman was wrong about The Passion. Yes, Mel Gibson is an anti-Semite. But Foxman predicted that there would be literal anti-Jewish violence in the country if it was shown. It was and there wasn't, and so far as I know he has yet to apologize for this idiocy. Gibson's own ravings have provided him cover.
The true and legitimate rulers of the `Am Yisra'el are the Torah Sages. The entire secular ABC-communal organizational structure of the American Jewish community is a gigantic imposture.
However, not all secular Jewish organizations in the US should be lumped into the same category as Foxman's ADL.