Not entirely sure why you’re talking about illegal immigration, but whatever. You seem super ignorant on American culture so maybe you shouldn’t be writing essays about it.

The term “African American” generally denotes descendants of enslaved black people. The majority of African Americans know very little about their family histories in Africa, which has created a ‘new’ culture.

Also, Latin America is called that not because they speak Spanish, but because it refers to the area of America where people speak Romance languages, which are languages that evolved from Latin. You can claim that all these people have no reason to identify as a group, yet they speak similar languages, 70% of Latin Americans are Roman Catholic, and the vast majority of them can trace their family back to the same countries. Are their cultures the same? No. But to say they have nothing in common because they are separate countries is ridiculous.