Apparently I've been clear in conveying a point other than the exact one that I had in mind. That's readily obvious to me.
Let's see if I can understand you better my friend. What does it mean to you to say that all people are equal? Equal in what ways? And why do you feel that we are equal?
When I refer to social equality, I mean that in our society people are afforded equal rights and protections by law, regardless of their differences.
Ideally, this means that all people are afforded the same opportunities for life, liberty, pursuit of happiness, defense, and support regardless of their differences. Social equality does not assert that all people are equal in all senses of the word, because they clearly are not - it merely says that factors that make people different are not considered. Gender, race, belief systems, social status, height, weight, physical aptitude, mental acuity, age, health, wealth, etc. for the most part are not factors that are considered when determining equal rights and protection under the law (at least when it's working properly).
It is not that we don't acknowledge these factors exist - they do, and they are by definition why people are
not 'equal' in all senses of the word. Differences would not exist if we were. These factors are simply not considered when determining social equality. We do this because we have determined that it works well for the society that we have made and desire to live in. I believe we chose to do this for ourselves.
We don't
care that someone is taller or faster or older when it comes to affording social equality - why
should we? There's nothing in nature or evolution or atheism that compels us to.
Presumably, you must believe that God is doing something similar when He calls for all people to be considered equal, despite the fact that some are created physically and mentally different from others. What do you think His basis is for declaring humans equal, and what do you think his rationale is for not considering factors like race, age, wealth, etc?