I am amazed that so many people still think miners are in charge of the protocol. I don't know why this myth still exists. The very fact that BTC is "Bitcoin" today proves that they are not.
Users, miners, and devs are all in charge. That's how I see it. Is that what you mean?
Only users. And especially merchants (people accepting BCH). Miners and devs have some influence (for obvious reasons), but users have the final say by using the coin they prefer.