Did Scott Walker create Wisconsin's budget crisis as a means to the end of cutting the public unions' collective bargaining rights?

That's what the NYT thinks:

Just last month, [Gov. Walker] and the [Wisconsin] Legislature gave away $117 million in tax breaks, mostly for businesses that expand and for private health savings accounts. That was a choice lawmakers made, and had it not been for those decisions and a few others, according to the state’s Legislative Fiscal Bureau, the state would have had a surplus.

Wisconsin is certainly not as bad off as California, Illinois, and several northeastern states that are making tough budgetary decisions without trying to eliminate union rights. Nonetheless, the union-busting movement is picking up steam, with lawmakers in Ohio, Indiana, and several other states. 

It really is odd that Wisconsin became ground zero, because we didn't have the budget disaster that was going on conspicuously in some of the other states. I'm really trying to understand this. Why Wisconsin? A distinctive thing about us is how good our public employees' benefits are. The cut we — I'm one of them — are being asked to take is severe. (I'm looking at a loss of more than $10,000 a year, myself.) But it's hard to complain and appear sympathetic, because we're only being asked to go from paying 0.2% of the payments our salary into our pension fund to 5.8%, which probably looks astoundingly low to outsiders. We're being asked to pay more for our health insurance, but the coverage is extremely good, and the annual hit will be about $2,500.

So maybe we public employees in Wisconsin are a great target — a great starting place for what is a national movement by the Republicans. I'm trying to understand the party politics. Tell me if this is correct: There are vast numbers of public employees, who vote overwhelmingly for Democrats. Once elected, the Democrats create more and more public jobs with greater and greater benefits, and, consequently, more voters who are even more locked into voting for Democrats. This is a cycle that approaches political graft, and the Republicans, to win, must overcome all those passionate, self-interested Democratic voters. Why wouldn't the Republicans embrace a strategy hostile to the public employees? Why wouldn't they drive a wedge between the public employees and all the other citizens in the state?

So I see 3 questions: 1. Is this what the Republicans are really doing? 2. How good a political strategy is it? and 3. Is it a good idea to reduce the political and economic power of public employees?

The 3 questions are interrelated, but they should contemplated separately... but who is capable of doing that? I'm trying to be fair, and it's possible that I'm in as good a position as anybody. I voted for Walker and support many of the things the Republicans are trying to do, but this budget plan — as I said — will cost me more than $10,000 a year.