But does everyone on earth have an equal right to an equal share of its resources? the spaceship metaphor can be dangerous when used by misguided idealists to justify suicidal policies for sharing our resources through uncontrolled immigration and foreign aid. in their enthusiastic but unrealistic generosity, they confuse the ethics of a spaceship with those of a lifeboat. which of the following best explains why the author uses words such as "dangerous," "suicidal," and "uncontrolled" in this passage? a. to present a logical argument b. to appeal to the reader's emotions c. to establish his credibility d. to attack the people who agree with him