2. We could easily change this system without disturbing the economy at all- instead of allowing the banks to create the money, give that power back to the treasury. The banks can then borrow from the treasury, and the treasury can get repaid, reaping trillions of dollars for the federal budget.
3. The Federal Reserve is composed of bank and government appointees, it sets the interest rates between banks, and that translates into interest rates for borrowers. When rates are high less credit is issued, when they are low, more credit is issued, and since loans are what creates our money (with the exception of the rare "quantitative easing" money printing bank giveaways such as Obama did to "save" the economy) the Fed is controlling how much money is in circulation through the interest rates.
The Fed uses this power to create and pop bubbles, the "business cycle" is created by the Fed so that the rich can buy up assets on the cheap every time there is a crash, further consolidating wealth.
4. The Fed is trying to crash the economy by jacking the interest rates, even though there is no inflation and wages are not rising much at all. They are acting politically to sabotage our trade war with China and attempts at peace.