Mexican workers, known as braceros, often:

Received lower wages than white workers did.

Explanation:

Mexican workers known as braceros arrived in the United States as workers due to the Bracero Program. This was a series of diplomatic agreements between the United States and Mexico initiated in the 1940s and ended in the 1960s. During these years, many laborers from Mexico moved to the United States. However, these workers often received lower wages than white workers.

me on my last question.

"the attempts of the proletariat to rise above this abasement"