Structural, institutional and systemic racism broadly refer to the system of structures that that have procedures or processes that disadvantage minorities and particularly people of color.
The NAACP, refers to the rules, practices and customs once rooted in law with residual effects that reverberate throughout society. But they each come with their own nuances.
Bottom line, we collectively stand for equality. This must be true not only of basic rights afforded to all, but effectively implemented in the systems in place that effect the treatment of and opportunities for all.