Here's how the Tea Party are valid. Most TPs are probably nice enough people who want a good and decent life for themselves and their children. They aren't the sharpest knives in the drawers, are extremely unsophisticated, and seem to know very little about how the world or government works. But they really do NOT want to destroy this country.
But they are being used by people who really do want to destroy this country.
As I'm sure everyone is aware, the TP is financed by billionaires. That's the only reason they've gotten any attention at all. It's in the best interests of those billionaires to destroy every social program we have. And that's exactly what they're doing. Every social safety net we have is quickly being savaged and/or eliminated. Real human beings are going to suffer and die because of these cuts.
As well, it's also in the best interest of those billionaires to keep their own taxes at zero AND to keep their own corporate welfare as high as possible.
For example ... In 2009, GE made $14 BILLION in US profits. Not sales, profit. The amount of tax they paid on that was zero. Nada. Not a thing. Not only that, but they got tax subsidies in the amount of $4.2 BILLION (yes, billion with a B).
GE pays far less in taxes than someone working at McDonalds, like many other big businesses. Smaller businesses, the middle class, and the working poor are who pays tax revenues.
So where does the Tea Party come in? Well, the "haves" need some kind of "grass roots" movement to point to for blame. The republicans wouldn't want to be blamed, would they? So, they chose a somewhat ignorant but well meaning group of people and say, "They're making us do this!" Just like they did with the evangelicals before them.
In fact, no group is going to make much a difference in US policy unless the powers that be want them to.
The TP is a ruse ... one of many with the same purpose.
And more thing ... The people in power right now (i.e. the ones with all the money, not the politicians), are also a cruel bunch. The 1990s proved we can all live OK and the rich can still make their money. But this time, it's different. They enjoy causing other human beings to suffer, and that's what they're doing. And the TP will be blamed, but they had nothing at all to do with it.