We're not all alike.
When you open a pea pod, the peas look alike. It's difficult to tell one pea from another. Not so with people. Although to some folks all Hispanics may "look alike," we are as different from each other as one Anglo is from another. Not only are Mexicans different from each other, but Mexicans are different from Cubans, who are different from Puerto Ricans, who are different from Guatemalans.