Disagree. One, the tea party's message has been crystal clear and unified: government must reduce spending. Second, by having no central leader figure, the tea party has no single person that the left can declare war on with their Saul Alinsky tactics.
Counterpoint: Their "message" is muddled:
"We Must Reduce Spending.... except in my back yard". etc. There is no real plan. Just an
(on point, really) chant that the Government Spends Too Much, and that the TP feel that the American People are "Taxed Enough Already".
But there is no plan. Just "Taxed Enough Already"
There is no real organisation. Just some field events, rallies, and a bunch of signatures from passers by.
Further (and more to the point): The lack of strong leadership gives the TP no real means to fend off those same tactics you are referring to.
You are correct that since there is no centeral person
(for the left) to declare war on, it's difficult to pin down and stamp out the TP. But without that central person, there can be little progress, either. Without that central person, they're just a bunch of citizens.
The plain and simple fact of the matter is the Tea Party are NOT in control of their political destiny. They are being used - by both the Liberal/Progressives
(as a strawman), and Conservatives
(as pander~fodder for votes). And until such time as the Tea Party can stand on their own as a Legitimate Political Party, instead of
'A Bunch Of Disgruntled Citizens Who Named Themselves', their current status will continue: They'll have the numbers in some cases to influence individual races, sure. But without a strong, independent, and centralised leadership, they'll not be able to make -or even greatly influence - actual Policy in DC.