Fuck, just lost my entire comment. I'll just summarize the main points now.
We hold these truths to be self-evident: that all men are created equal, that they are endowed by their Creator with certain unalienable rights, that among these are life, liberty, and the pursuit of happiness; That to secure these rights governments are instituted among men...
There you have it. The purpose of government is to secure your natural, unalienable rights.
The Declaration of Independence is a powerful speech that outlines some fairly new ideas for the role of government. However, it is not a policy document, not a legal document, and not even a philosophical treatise. For one, it does not say what the full list of inalienable rights are, nor what the government can do to secure them. As a result, it is useless in this discussion.
Regarding the platform, it ranges from hoping for change to tarring-and-feathering-worthy.
Points 6-8: I won't argue with your assessment of them. I don't agree 100%, but it's close enough for now.
Point 9: earmarks are at a historic low. Interestingly enough, some political scientists have been arguing for a long time now that it is earmarks that grease the wheel of Congress.
Point 10: your assessment is the fundamental problem of the point. Reducing taxes without a plan of what's important to fund or without regard to general revenue is nothing but pandering to your base.
Points 1-4 are complete fantasies in that will either accomplish exactly, exacerbate the problem they're supposed to solve or are trying to address a point that even a few years ago used to be conservative or free-market solutions. They're utterly laughable, especially since one of them is being implemented in California, and everyone there hates it.
That brings me to the most egregious point in their platform: point 5. The mentioning of a "blue-ribbon panel" is cute, but is nothing short of a fig-leaf for a concept that goes against the core of the US government, the basic principles that the Founding Fathers were working with, and is guaranteed to lead to a complete kleptocracy. Why? It basically removes the authority of the president to execute laws, the authority of the courts to rule on whether laws have been broken, and merges them all under the authority of the Congress. In other words, it does away with the three branches of government, and will lead to the worst excesses of any Banana republic.
It's that point especially that cements my notion that the Tea Party doesn't have a fucking clue about economics, politics, civics, or even the goddamn history of the US.
So excuse me while I give them the benefit of the doubt and label them merely insane, and do not think that they are some very clever sociopaths who are bent on destroying the core foundation of the US government.
Sorry, little of that looks like lunacy to me or most people for that matter.
On Wikipedia, this would be tagged as "weaselwords".