Some of the differences may have been very slight, some extreme; all involving a vast complex of varying traits. But equality as a mathematical concept can only mislead in attempts to understand human interaction, save in a very specialized sense, such as fair & equal access to the Courts.
I treat every individual as an individual, but I was speaking in general terms. I think you already knew that.
I follow Alan Watts, and exist in the now. Everyone, individually, gets a fair shot.