So we should treat the rich unfairly? How do you justify that?
Is it? I'm not so sure. You want to tax the rich at a higher rate, not because of any wrongs committed or illegal business practices, but merely because they have more money. That is not a sound principle for taking more of one person's money compared to someone else when they both earned fairly and honestly.
How much the rich suffer from increased taxes as opposed to middle class or poor is irrelevant. Are the rich not American citizens? Are they not entitled to equal rights and protection under the law? Should they not be treated fairly the same as everyone else in the courts or other spheres?
The metrics are irrelevant. Where the law is concerned, the rich - as American citizens - are entitled to the same considerations as everyone else.
Because the government and individuals both manage money. When necessary, you cut your spending. When necessary, the government can cut its spending. It's not like the country will collapse if the government cuts out some expenditures.
No one likes taxes but taxing money that's already been taxed is too much.