Mitt Romney says unions 'killed' GM and Chrysler; so why does Germany sell twice as many cars and pay its workers twice as much?

Mitt Romney, quoted in the Los Angeles Times:

Labor has asked for too much and business people have exceeded their demands only to see the business ultimately fail," he told the Ames Tribune's economic board in December. "That's what happened to GM and Chrysler. The demands of labor unions over time killed those businesses and made America become less competitive.

Some auto industry statistics from Forbes regarding German vs. auto production in 2010:

Vehicles produced: Germany: 5.5 million; US: 2.7 million
Average hourly worker wage including benefits: Germany $67.14; US: $33.77

Meanwhile, last weekend, Romney picked up another $3,000,000 at three fundraisers in Long Island's tony Hamptons; at the home of former U.S. Ambassador Clifford Sobel, at the $18 million Southhampton beach house of David Koch (puppetmaster of astroturf attack group Americans for Prosperity) and at the 50-acre compound of Revlon chairman Ronald Perelman.

Al Sharpton has a reenactment: