Essence, you seem to be missing this distinction between private and public unions. Private unions provide a very necessary form of worker's collectivization, and are absolutely necessary to modern America. I support them, though to lesser an extent than other people.
Public unions however, especially in Wisconsin, are truly an abomination of the idea. The state mandates that all workers mus be a part of the union and then as a result dues are collected from their paychecks. Generally the dues get funded straight into the political machines of Democratic candidates, who often side with labor for political and other reasons. As a result, public unions have a hand on both sides of the bargaining process; they often influence the people setting their own wages. This dynamic is the absolute opposite of private collective bargaining, where there are two sides struggling and as a result public unions can be disastrous to governments. This was a fact that FDR and other union leaders, including the original founder of the AFL-CIO, recognized.
Now is politics coming into play? Most certainly yes. The Democratic senators fled the state because they didn't want to face the consequences of losing the fight. The will of the majority is not an egregious abuse of power, and it never was. Or is Obamacare now legitimately tyranny at its finest? The two situations aren't that much different. Are Republicans and Tea Partiers tagging onto this out of spite and a whole other host of reasons? Yes. Is the movement funded by ultra-conservative (more than me!) Koch brothers along with suspicious cuts for police and fire unions? Yes. Is the Governor probably using the situation to correct something he (and I) view as wrong? Yes. This is politics at its finest.
Also, last I checked, we have a retarded tax scheme for both individuals and businesses alike. As it is, I believe the federal tax on corporations is among the highest in the world, counterbalanced with more holes than a bloc of swiss cheese. As a result, saying he cut corporation taxes is only half the story when many corporations are paying out the ass as it is. Cutting limited amounts of taxes on corporations is a measure designed to stimulate the local economies.