Therefore the existence of starfish that don't live in the desert is just one more nail in the coffin of the fiction that is evolution
You are clearly ignorant of the existence of the Sand Dollar, a type of starfish which is evolving to live in the desert.
This creature, a clear example of evolution, has connection to Chtistianity:
"…the markings on the shell symbolize the Birth, Crucifixion and Resurrection of Christ. On top of the shell, an outline of the Easter Lily is clearly seen. At the center of the Lily a five pointed Star representing the Guiding Star of Bethlehem that led the Wise Men. The five narrow openings are representative of the four nail holes and the spear wound made in the body of Christ during the Crucifixion.
Reversing the shell you will easily recognize the outline of the Poinsettia, the Christmas flower, and also the Bell. When broken, inside the shell are five little little birds called the Doves of Peace. Some say they are the Angels that sang to the Shepherds the First Christmas Morning."