The struggle of having choices within constraints.

Choices people make become limited within constraints. Sure there will be some choices that exist but there aren't many available because of constraints that limit what you could do. things like racilization were constraints on races. For instance the Caucasians had better choices on their side because they were white. Being white gave many opportunities that other races didn't get. Blacks didn't have a choice to vote, Asians didn't have a choice to become naturalized citizens,  and many other things included.
The idea of "race" is a biological myth. It hasn't been proven that race is based on biology, but it is an idea we escribed. There is really on scientific base to begin a study. genetically we are basically the same.

You have the choice to do things and to want the freedom, and equalization of everyone else, but there were laws that prevented that from occurring. For instance, when Lloyd was sitting on top of the desk (he did it by choice, because that's where he wanted to sit), the teacher told him to get off of the desk (this would be the constraint because the school doesn't allow students to sit on top of desks).