Most of the scots irish who came to the colonies were farm laborers or tenant farmers who were leaving behind droughts and crop failures
To grow larger and more powerful. They didn't have to pay people to work so they were able to keep to money and continue to buy more land and grow.
Secretary of State John hay was an advocate of "<span>a. an open door with China" since this meant that the Us would benefit greatly from increased trade with a lucrative trading partner. </span>