Maybe it's because a candy like Mars Inc.'s Snickers is so easily associated with "fudge packing" that the chocolate bar's ad agencies feel the need to release one homophobic ad after another.

A 2007 Super Bowl ad showed two auto mechanics accidentally kissing while gobbling down the same Snickers bar; they pulled away from each other, repulsed. That ad, from TBWA New York, had even worse scenarios in the online version, including one of the mechanics attacking the other with a wrench.

Now, Snicker's newest ad, from AMV BBDO London, in all its homophobic glory. The spot, shown here, features Mr. T from A-Team attacking what can only be described as a power-walking, butt-wiggling queen; Mr. T. shoots Snickers bars at him from a giant truck-mounted Gatling gun to get his sissy ass running. Walking, of course, is too girly for a manly man. "You a disgrace to the man race!" shouts Mr. T.

And all this follows BBDO Detroit's Dodge Caliber ad, where a Tinkerbell-esque pixie was on hand to illustrate what's wrong with buying anything but a macho car.

Now, what do all three of these agencies have in common? They're all owned by Omnicom. And CEO John Wren is getting a lashing.

In an open letter to Wren, AdAge columnist and NPR's On The Media co-host Bob Garfield asks the executive, "How could you be so insensitive, how could you be so shallow, and how could you be so mean? This letter is to you, but it is equally to your colleagues throughout the industry. Are you so bereft, of ideas and simple humanity, that you must be reduced to stereotyping and bullying? That you must identify an 'other' to ridicule, or worse? That you must build a brand on the backs of people who have harmed no one save for challenging a high-school locker-room standard of masculinity? Stop the dehumanizing stereotypes. Stop the jokey violence. There is no place in advertising for cruelty. Pull the campaign. Do it now. Then tell your agencies how to behave. Or else."

Garfield is absolutely right. Wren owes the consuming public a much heathier approach to getting them to subscribe to his clients' brands. But Wren's agencies aren't the only ones responsible here. Snickers' parent company Mars, and Dodge owner Chrysler, are the ones OK-ing these spots for air. Not just the copywriters at the agencies get the blame here, but the execs at these two huge firms are the ones putting the homophobic spots in front of millions of Americans, all in exchange for a cheap punchline.

For now, we're going to switch to Nestle's 100 Grand, and Ford's Lincoln MKZ. You know, if we ate sugar or drove American cars.

Update: Is Nike getting in on the act? [Queerty]