What does Quincy think is the real motive behind president polk's aggressive policies

He thinks the president wants to reduce the population through war which he was against ...

He stands by his biblical quote, be fruitful and multiply.

Explanation:

Coming into office, Polk listed four goals for his administration: reducing tariffs, acquiring California from Mexico and Oregon from the United Kingdom, and introducing the "independent subtreasury" system to take U. S. funds out of the coffers of private banks.

John Quincy Adams was an American statesman, diplomat, lawyer, and diarist who served as the sixth president of the United States from 1825 to 1829. He previously served as the eighth United States Secretary of State from 1817 to 1825.

Adams was well known for his extreme political independence, brilliant mind and passionate patriotism. He was a leader in the Continental Congress and an important diplomatic figure, before becoming America's first vice president.