Dialogue has a very interesting article on why the "chiasmus" in Alma is not really a chiasmus.
https://www.dialoguejournal.com/wp-cont ... 04_105.pdfConclusion
The existence of extended chiasmus in the Book of Mormon seems far from proved by Alma 36. While the inverted parallelism developed by
Welch is impressive on first reading, on closer analysis it is Welch's creativity that is most notable. By following flexible rules, he has fashioned a chiasm by selecting elements from repetitious language, creatively labeling elements, ignoring text, pairing unbalanced elements, and even including asymmetrical elements. His efforts to defend it with a "full text" chiasm and fifteen criteria only highlight all the problems as well as his own creativity.
As for Edwards's and Edwards's analysis, they acknowledge that their "quantitative judgments" are based "only on the order of words and
ideas" that they themselves select. They explicitly "disregard the overall integrity and literary merit" of the chiasm, which, as shown above, has little "chiastic strength" under Welch's own criteria.
Now, let's take a look at a real chiasmus. This one is found in The Late War (a book that shares many similarities with the Book of Mormon):

http://wordtree.org/thelatewar/