That's exactly my point. Competition at the fundamentals is called cancer. It's the exception, not the norm.

Your body prioritizing which parts to keep alive for the survival of the whole ship is not an example of competition. Competition would be if a body part actively attacked another body part. In this case, survival of the entire body will eventually benefit all body parts

> I guess that depends on what you consider "the edges"

The "edges" as thoroughly defined in the paper I linked. Major evolutionary transitions in individuality (METI). METI is a widely accepted framework in biology