I guess lyrically they're similar because they're talking about escaping the kind of misery that likes company. 'The Last One Alive,' for me, is very simple. It's just about alienation, really, that causes anger. ↗
When God loves a creature he wants the creature to know the highest happiness and the deepest misery He wants him to know all that being alive can bring. That is his best gift. There is no happiness save in understanding the whole. ↗