Group 1 - The article discusses the concept of "Alice" individuals, defined as those who are Asset Limited, Income Constrained, and Employed, highlighting their precarious financial situation [6] - The term "斩杀线" (kill line) is used to describe the vulnerability of many middle-class Americans who can quickly fall into poverty due to sudden events like job loss or illness [5] - It emphasizes that while many middle-class individuals can maintain a basic standard of living, the truly destitute are often illegal immigrants who have nothing [4]