I think the Tea Party is one of the best things to happen to American politics in our generation. Extreme? Not nearly like they're portrayed to be. Their main themes are that we are Taxed Enough Already, spend too much and need to return to constitutional government, and constitutional government only. I don't think that is so extreme. The Tea Party is staying out of social issues, and anything not in line with the principals outlined above.
When one considers the Tea Party compared to the Republicans and Democrats, I don't know how you can feel bad about them at all. Even if they were as 'out there' as the Democrats and mainstream media like to portray them as being, they'd have to go a very long way to even scratch the surface of causin as much damage to our country as the group before the last election has done.