They control everything we need to survive. When we take it back you will find out there is more than enough land, food, water and anything else everyone on the entire planet would need to live without struggling ever again. It was never about money but always about control.
For example we have so much oil that we will never run out. It is not made with dinosaurs, it is constantly being made from the ocean floor and travels into the crust. It is everywhere! It does not cause global warming, it is actually the opposite. If you remove to much carbon we actually heat up. Everything on our planet is made from carbon, it was made to regulate what it needs.

That whole photosynthesis thing people forgot about from grade school.