joined the Nazi party because they supported construction of the Autobahn.

Except that they moved to the US during the Franco-Prussian war.

I could join PETA because I think testing on animals ought not to be done without good reasons.

I could have joined Stop The Draft back in college because I was (and am) very opposed to forced service of any kind. I even showed up for a meeting. Turned out to be a bunch of loony left types opposed mostly to the "economic draft*". The repeal of the Selective Service registration project was still in the platform somewhere, but I didn't sign up because you have to look at the whole picture.

I'm not comparing the Teabaggers to the Nazis, I'm just saying that every political group no matter how out-there has some reasonable positions.

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* The "economic draft" is the fact 1) it's hard to find a job and 2) the military is a pretty good job. So theoretically the poor have to join. Ending the economic draft is not a cause I can get behind.