求解释这句话的语法点.

To drive this message home to such young Americans目的状语,I have a humble suggestion是主句 ,a movie ,or TV series是suggestion的解释说明,可以认为同位语 dramatizing just how difficult it was for this country to get where it is - and how easily it could all be lost分词作状语how difficult it was for this country to get where it is and how easily it could all be lost作分词dramatizing的宾语