You keep implying a link between "economic majority" and "nodes." Not obvious to me.
Nodes could be created & run (at minimal expense) by actors hodling no bitcoin; many (most) hodlers don't run nodes, so?
You aren't realizing that full nodes validate both the longest PoW chain and if the valid rules are being followed. What you are describing is the creation of an alt , which is fine and has no direct impact on bitcoin. Nodes that don't have economic interests behind them are of little value. Not all nodes are equal!
Here is an analogy to consider:
What is worth more: 5 large fortune 500 companies and their userbase that enjoys their products and services or 100 shell companies with no capital, no products, and no users? What happens in an ecosystem when these 100 shell companies are introduced to a location and the general public chooses to ignore them because they don't like their product?
I don't care what the full nodes do, it is irrelevant to my [implicit] question, which is: