You keep talking globally without the valid counterpoint. You're mixing American taxation with global outcomes and saying because we have it better off it's not wrong. That's the functional equivalent of telling a person on a sinking ship that they should feel lucky they aren't drowning while you pass by on your yacht. You can always find someone worse off, but wouldn't it be more productive to build the pie by bringing up the bottom rather than pulling up the ladder behind you.
You again don't seem to understand facts. It's simple numbers. If money keeps pooling at the top democracy doesn't function, it functionally can't because of the power imbalance and we've seen it more than once in the United States.
Since you're asking personally questions I donate large amounts of my personal money because I know my station and came up from poverty, but my lack of hypocrisy isn't the point. The point isn't how much you give it's how much you have left after you've given. The United States is one of the most charitable countries in the world, however that means absolutely nothing because as stated prior, the people at the bottom no longer have the funds to go to the hospital. You seem to be woefully unaware of the reality in the United States, many Americans literally cannot or will not go to the hospital or an emergency room due to cost and a not insignificant percentage of those people either die or end up worse off because of it. Right now in the United States we have literally entire towns and cities that do not have access to clean, safe water, much less electricity and running sewage. Add to that infant mortality rates in the United States are worse than most other developed countries, economic mobility is currently anemic in either direction and has been since Ronald Reagan and nearly half Americans are one or two months away from a foreclosure and homelessness. Just what wonderland do you think most Americans are living in?
edit: For terrible, no good, horrible grammar.