Ethereum is fully open-source (that is my understanding anyway; I have never used it), so all the code is known. Further, anyone may participate, or not; contri

Ethereum is fully open-source (that is my understanding anyway; I have never used it), so all the code is known. Further, anyone may participate, or not; contribute code, or not; promote and run their own protocols, or not. Congressional elections are typically decided by ~25% of citizens. Not very far from the 5% rate you are claiming. Sampled approval rates have been as low as 11%. The most recent rate I've found is 16%. Your point is about minimal discrepancies and misses (for me) the much, much larger picture.