The problem that saylor & maddireidy missed here is not 6102, he is correct on that. The issue is large holder choosing which fork to follow. Say Coinbase held 25% of the supply & decided to follow 20...
Why are large holders making decisions about a fork? Nodes and miners typically make these decisions together. For example, if a company holds 50% of all Bitcoin, but doesn’t transfer them on the mainchain. Miners would have no incentive to support that chain, or follow the company’s opinion/ideas. Miners follow the chain that offers the most fees, and the chain with the most individual users would likely generate the highest fees together. Or am I missing something?