He cold starve the Jews/non-Aryans, and since he put them in ghettos or concentration camps, that makes it easier for Hitler to starve them. Hope this helps!
It was primarily the The Townshend Acts that were set in place by British Parliament that led to the Boston Massacre, since these acts called for the taxing of the colonists to pay the salaries of governors and judges in the colonies who were loyal to Britain.