A 90% income tax on the rich? You've got to be kidding! They would cease being rich and be lower income like the rest of us and would have no incentive to lead corporations and deal with the stresses that go along with it.
I have no problem with some socialist programs like social security, a government run health program for all its citizens (not for illegal immigrants) and good schooling for its citizens. Other than that, you should be expected to make your own way in life. The government doesn't owe a living for being born. Your parents created you and are responsible for you up to adulthood, then it's out the door and best of luck.
Perhaps you need to learn the history of your nation. In the '50's, we built an Interstate System, the GI Bill was in effect, and we jumped way ahead of the rest of the world in percentage of the population that had higher education. Look at the top tax bracket at that time;
National Taxpayers Union - History of Federal Individual Income Bottom and Top Bracket Rates
With the present tax and economic structure, the wealth is being concentrated at the top in this nation, and we are falling behind because of that. Even little South Korea graduates more engineers than we do. And they have a far better Internet system, the 21st century equivelent of an Interstate Highway System, than we do. We either spend on infrastructure, education for all citizens that will work for the grades, and R and D, or we join the other has beens of history.