Jim Crow laws were a series of laws passed in the 1800's. It made sure that blacks and whites were separated. All these laws went on until Martin Luther King Jr. put an end to them in 1963.
By the words she uses, such as "stuck at some bug-infested" and "my life worse" you can tell that Jamie feels angry, shocked, and annoyed that her mom signed her up for camp. Hope this helps!
