4. PART A: One of the central ideas of this speech is that the farming industry in America - California particularly - is rife with injustices against migrant workers and the environment. What is another central idea of the text? A Migrant workers must remain hopeful and optimistic that the age of equality will come within their lifetime. B To achieve justice and equality, the people - migrant workers and their allies - must organize. C Things are certainly much better for Hispanic people in the U. S. than they were in the decades before this speech. D Unions are only as strong as the government allows them to be.