"Let every nation know, whether it wishes us well or ill, that we shall pay any price, bear any burden, meet any hardship, support any friend, oppose any foe, in order to assure the survival and the success of liberty."

John F. Kennedy (Inaugural Address)

Just to expand, assisting harassed peoples is part of the American tradition. You can debate when and how it is wise to intervene, but acting as if someone who wants to help is unbalanced just reveals a lack of knowledge about our own history and tradition.