I'm English, the Obamacare example was simply the most recent one that sprang to mind, probably due to me listening to Peter Schiff a lot (the one who got it bang on about the sub-prime crisis way before it happened).
I have no idea whether it really is cheaper/easier to hire full timers rather than part timers, but it's got naff all to do with their political leanings and everything to do with lowering labour costs. Which, as in my answer to the other chap, makes products cheaper for the consumer all else being equal. This is a good thing.
The rest of your reply is interesting, you believe right-wingers do things that are in their best interests, but left-wingers don't and that this is a plus for the left-wingers? The road to hell is paved with good intentions, perhaps those you call right-wingers understand that by pursuing their best interest they also help others. Building a good business not only employs people, but provides value for the customers who choose (voluntarily) to purchase the products. Win-win all the way.
You are right, it IS in everyone's best interests to live in a cooperative society. Which is why I don't understand why left-wingers are so set against businesses and free-market capitalism which are the essence of voluntary cooperation which benefits all.