What was the rationale behind the "live and let live" system?

In 1832 the supreme court ruled that georgia did not have legal authority over the cherokees living in the state. president andrew jackson responded to this decision by

How many citizens of mexico does it take to equal the ecological footprint of the average citizen of the united states? it takes nearly three mexican citizens to equal the ecological footprint of the average u.s. citizen. it takes about 12 mexican citizens to equal the ecological footprint of the average u.s. citizen. it takes just over eight mexican citizens to equal the ecological footprint of the average u.s. citizen. two citizens of mexico equal the ecological footprint of one average citizen of the united states. they are essentially equal?

Here’s the first one let me send the next page of the passage