The U.S. federal government has a $4 TRILLION annual budget, more than 22% of GDP. State and local governments in the USA spend another 18% of GDP, so call it $7 TRILLION total in government spending. That's more than $20,000 for every man, woman and child in this country. Don't you think that's more than enough wealth to fund a government?
I'm glad that you feel you're getting value for your money. Would you feel any differently if 25% of your federal taxes were being used to bomb and kill people in foreign countries and to maintain a worldwide network of over 700 permanent military bases? How would you like paying taxes to house the largest per-capita prison population in the world? What if your schools were expensive as hell, but still produced sub-par results? We fund some absolutely enormous welfare programs for seniors, the poor & the disabled, but these programs are unsustainable. Anyone under age 50 is now paying taxes based on government promises that will never be kept.
(I could go on)
And that's only the spending part. The U.S. federal government has also given us GATT, NAFTA, the WTO treaty, The Patriot Act, The Military Commissions Act, the FISA Revisions Act, the 2012 NDAA, established a ubiquitous and largely secret surveillance state and militarized our police forces. And even with the $1 trillion they spend on "defense" they can't "defend" our borders against an invasion by 20 million illegal immigrants.
And you wonder why a USA resident just might have a negative view of government and be opposed to any further taxation? Not only are we being screwed out of a huge portion of our wealth, many of us are paying for shit that we don't want and for future benefits that we will never receive.