What is the painting “American Tragedy” by Philip Evergood of?

What is the painting “American Tragedy” by Philip Evergood of?
i need to explain in an essay how it relates to the shame of the american dream, but i can’t even understand what is going on, let alone analyze it. help!

A significant part of the “American dream” is the concept of freedom (economic, religious belief, political expression, speech etc. etc.)
Evergood regarded the use of the state’s authority (ie. the police) to suppress the legitimate expression of that freedom by striking factory workers as a tragedy and betrayal of what America stood for.

Philip Evergood (1901-1973)

“Phillip Evergood was the only son of an artist father who was a Polish Jew, and a loving English mother. At the age of eight, Evergood went abroad to an English boarding school. He eventually attended Eton prep school and then Cambridge university. After not doing well at Cambridge, he realized that his true passion was art. He began his art training at Slade School under Henry Tonks. He studied at Slade for two years focusing primarily on drawing rather than painting. Evergood then returned to New York and continued his studies under Von Schlegen and Luks at the Art Students League. He ventured to Paris to study at Academie Julian, briefly returned to the States, and then continued his studies in Paris. While in the States, he married his wife whom he met in Paris. They travelled to Spain and Evergood spent time at the Prado, finding inspiration in Velazquez, Goya, and El Greco. He was in Paris during the same time as the American expatriates but did not become close with many of them. Aside from selling his paintings at art shows, he also participated in art projects commissioned by the federal government. He died in a home fire in 1973.

Philip Evergood was an American artist who created works of art throughout the early twentieth century. With formal training in art, he painted average people and used his work to make social and political statements. He is well known for his murals, painted in public buildings and commissioned by the government during the Great Depression. Living during a time of great turmoil with social changes in the air, Philip Evergood was able to use his talents to create images for people to thoughtfully reflect upon for the rest of time.”