I'm not sure it's the "right" choice, but organized labor, is, and should, be an important constituency for the Democrats. Unfortunately the unions do better when Americans are buying massive trucks and SUVs.
"Right" is a value judgement, meaning its all about whos asking. From an economics standpoint, regulation causes higher prices, less competition/innovation, and are unethical. From the prespective of the people who pushed this policy, its "oh ** ** **, gm is dead in the water and everyone else isnt far behind, my portfolio is in the toilet, we need to loosen these restrictions!".
