Stimulus for Supporters Only

Something I've been thinking about: In 2010, 11.9% of the workforce were union members. But for some reason, unions make up 40 percent of employees exempted from Obamacare.

I've seen various numbers regarding how much stimulus money went to union workers, and they vary, but there were no estimates even close 11.9%.

So what I'm wondering. Why would any of the nonunion 88.1% support another "stimulus" bill. Was Obama going to be everyone's president, or just the union members president?