Answer and Explanation:
Hello. Although you have not presented the text to which this question refers, we can see, through the context of the question, that you are referring to Martin Luther King's speech against the Vietnam War.
In this speech, King presents seven reasons why the Vietnam War should be ended. Among these reasons, the first states that the war must be ended, because it harms American families that are poor. He says that this is because the American government donated financial aid to the country's poor families and that aid was the only means of survival for these people. However, with the expenses of the war, the government had to cut spending and one of those expenses was financial aid to poor families, that is, King claimed that the war promoted the spending of money that would be better used if it was used to help Americans. This reason is very logical because it is a fact, proven by evidence and supporting details, in addition to pointing out a very realistic and identifiable social situation.