The ability to see oneself in the monument would lead us to consider the piece as a living/breathing monument that is not static or staid, but as one that reflects today’s America and our current political and social moment. Monuments are established with the assumption that we as a nation have collectively decided that something should be remembered, honored, and celebrated.
Karyn Oliver confirms the idea that a monument can reflect the viewer's beliefs and values. I think she is challenging the idea of collective memory here by saying "monuments are established wth the assumption that we as a nation have collectively decided..." She thinks that not all people have equal power to shape societal narratives, so the monuments are often one sided and not as "collective" as they may seem.