Why is the end of this chapter a low point for Jurgis?

The police come and tell Marija and Jurgis that they are taking them away. Marija is not worried, however, because she says the police do this kind of raid all the time. She will be free by morning, she says. Jurgis tells her that he is a wanted man, however, and when he arrives at the police station, he gives a fake name. That night, in his jail cell, Jurgis reaches his spiritual and mental rock bottom. He thinks of everything that has happened and everyone who has been lost. “Their voices would die, and never again would he hear them -- and so the last faint spark of manhood in his soul would flicker out.”