Question about the American Dream?

Why does it seem now that we have to do more to achieve the American Dream and for many if they just do what their ancestors did achieving the American Dream is not attainable?

My parents came to the US 40 years ago . My parents have been US citizens for almost 30 years. My mom came from Guatemala, My dad came from Cuba. When my parents came to the US they could not speak English my mom had a 4th grade education and my dad had a bachelors in Engineering. They both worked in factories in Illinois for almost 30 years. My parents went from first living in a apartment to living in a town house to living in a big house in Chicago. After selling their house in Chicago for a profit and briefly living in Florida and selling their house for a profit they moved to Indiana. They bought several houses took out a loan and rented out their houses. I was born in Chicago, IL . I am bilingual . I served in the military to pay for my bachelor’s and Master’s degree. I work as a Social Worker in a clinic. My wife works as a Director in a daycare. For me and my wife to accumulate what my parents accumulate almost as much as my parents did in property me and my wife have to do much more than my parents: we have to be fluent in English and other languages, have higher education, I served in the military and we had to inherit property , plus use my VA home loan to buy property.