For America to be good, America must also be united. What unites us is not our race, tribe, ethnicity or religion. We are not held together by the dictates of a king, dictator, spiritual leader or an oligarchy.
Americans are united by two big ideas:
You have a conscience and are sometimes surprised by that unasked for feeling of knowing what is right and wrong.
In addition to all of that, you still find that there is something else that no thing, no thought, no feeling can satisfy. The 17th century mathematician and philosopher Blaise Pascal put it this way:
What else does this craving, and this helplessness, proclaim but that there was once in man a true happiness, of which all that now remains is the empty print and trace? This he tries in vain to fill with everything around him, seeking in things that are not there the help he cannot find in those that are, though none can help, since this infinite abyss can be filled only with an infinite and immutable object; in other words by God himself."
You see, you also have a spiritual side, what many through the centuries have called the soul.
So, how are people equal? We are all physical, emotional, rational, free, self-centered, conscience-laden and spiritual beings.
And one more thing. Some might say we are equal because we agree that we are, but if that is true we could just as easily agree that we aren't! The primary reason we are equal is because we are all created and loved by God, and God wants us to see each other as God does. That will never change.
You are a human being - a complex and wonderful creation of God. So is every person you see.