Which sentence supports the idea that immigrants have real reasons for leaving their countries?

1.Yet many Americans seem to be asking "Why do we have to be the ones helping?"
2.We don't always treat Latino immigrants with the respect they deserve, on both a personal and institutional level.
3.Children as young as 10 live in hiding—afraid to go to school or even to leave their houses, fearing attacks by local gangs.
4.As a country, we need to face the vast and complicated roots of the problems facing immigrant communities.