A main difference between stellar metamorphosis and establishment dogma is where the chemical enrichment in galaxies takes place.
1. Establishment dogma has chemicals synthesized outside of stars.
(Remember to the conditioned minds of establishment there is no evidence for chemical synthesis, as they are fusion reactors).
2. Stellar metamorphosis has chemicals synthesized inside of stars.
(There is evidence for chemical synthesis, as all stars synthesize molecules as they cool, die and solidify over many billions of years. These chemicals are called oxygen gas, water, feldspar, diamonds, pyrite, muscovite, amino acids, etc.)
As the star cools and dies it solidifes and combines its elements into molecules. These are called combination reactions.