Declaration of Independence Analysis

What assumptions are at work in this piece of writing?
In the Declaration of Independence, Thomas Jefferson assumes that all people are the same and talks in this piece as if the people are a crowd and doesn't consider everyone as an individual. The crowd can consist of people with difference races, backgrounds, history, disabilities, whether they are rich or poor, and many other things. He probably thinks that the people all are the same, but in reality, any population is diverse in the types of people that it consists of and the leaders fail to recognize or acknowledge this.
…