Idiot. Miners are service providers for the Bitcoin network. They order transactions for the network node and are paid _handsomely_ for this service. If they start blocking transaction features in an attempt to demand control over the system they're going to get fired. This isn't anything that I would do, it's the natural and obvious response to coercive behavior from miners, no different than any other kind of censorship activity. Many people already call for POW changes due to heavy mining centralization, so far I've fought back against those calls to promote harmony and avoid disruption, but this would be a position that would be hard to stick to in this kind of hypothetical.

But it's all moot, because that isn't what things actually look like. I talk to a LOT of miners (and, of course, I'm a miner too) and I don't expect there to actually be any issue there.