Garry, I can understand the anti-government frustration, and I'll go on anti-government rants too. But, let's look at the fundamental point of your post, which I think is this.
You think the government takes too much in taxes and provides too little in return. Ok. I will buy the facial appeal of that position.
But let me ask some specific questions. Most of our yearly tax revenue goes to (a) debt service; (b) defense; (c) Medicare and (d) Social Security. Most everything else is peanuts.
Of these services, what you could cut? And more importantly, which ones do you think the American people, collectively would support you cutting?
In other words, given the level of services required of a modern democracy, and given what we know about the marginal tax rates in other such countries vis a vis the US (we are in the middle or low end), I'd suggest that our tax rates and size of government -- while bigger than we would all like -- is probably as a practical matter in the range of what is necessary in this day in age.
Some other interesting statistics to chew on. Generally speaking, Republicans, and in particular Reagan and the Bushes, have been far more resopnsible for creation of the national debt than Democrats:
U.S. National Debt Graph: What the Press Won't Tell You
Economic growth from 1961 to 2008, showing significantly more growth under Democtractic Presidents:
% Per Annum Democrat Republican Bush43
GDP Growth 4.1% 2.9% 2.2%
Employment 2.9% 1.7% 0.5%
CPI 4.0% 5.1% 3.0%
DJIA 8.1% 6.5% 0.9%
Dollar +0.8% -3.6% -5.9%
And last, a perhaps more theoretical point. If you agree that government twin prime roles are to (a) defend the country and (b) ensure an ecnomic environment that smooths out the damaging effects of the wild business cycles of boom and bust that used to wrack our economy, take a look at his history to see how government management of the economy in teh modern economic era, post depression after the competing theories of Keynes, Hegel and Friedman developed:
http://en.wikipedia.org/wiki/List_of_recessions_in_the_United_States
Based on that, I'd have to disagree with your assessment that "government has not been our friend" in the 20th and 21st centuries. It sure is frustrting dealing with DMV, or with OSHA or whoever, but at its core function -- stabilizing our economy so that we can all focus on our businesses and lives -- I'd say recent government has been far more successful than ever before (when, frankly, government either didn't care about or didn't understand macroeconomics).