Sorry, please try again. Heard that one before. And to show that I'm a nice guy, I'll give you the obvious retort.
1) Your nice little story is about abiogensis, not evolution. Evolution does not care how the first lifeforms came to be.
2) Sand castles do not self-replicate.
Self-replication is not a hurdle so easily discarded. You are leaving a galaxy size hole in your logic. Saying that natural phenomenon can develop self-replication in organisms is more fanciful than my sandcastle story.
Abiogenesis only applies to the simplest lifeform, not well developed mechanisms that perpetuate life. Self-replication does not fall under the category of abiogenesis.
Scientifically explain the development of self-replication. As I have said illogic has conquered Academia. Darwinian theory is a lump of sand on the beach.