> You're not using the terms "structuralism" and "post-structuralism" correctly.

The first sentence is the important part. "Structuralism" is in no way related to "structural" or "institutional" racism. "Structuralism" is what the next sentences are describing, and it doesn't matter if you understand them; they were probably added as ample evidence that the first sentence was true, and possibly as stuff to google if you're interested in a subject completely unrelated to this discussion about the article.

Structuralism is some French theories about how creative writing should be structured.