In the fifth paragraph, Wiesel writes, "Of course, indifference can be tempting - more than that, seductive." What kind of figurative language is this (metaphor, personification, hyperbole) ? How does it support Wiesel's main ideas about indifference?

Personification.

The action of seduction is a human trait, 'indifference' does not have the human or physical qualities to actively 'seduce'. Wiesel though, has given it that personified power.

Wiesel's main idea through his speech is that indifference is the most dangerous thing to have. Showing that indifference is tempting and seductive proves how dangerous of a trap the world can fall into because it's easier to be indifferent than take a stand. People tend to be easily tempted or seduced, so giving indifference these qualities shows how much more aware and how much stronger people have to be in order to rise above it.