> So is Ethereum not going to PoS if miners say no?
Correct
> Every soft fork was voted on by miners. Developers provide the code, but it only activates with miner consent.
Again, it's the same process with Ethereum.
Not sure if this is just a misunderstanding or if you're reading something that says this isn't the case, but if it's the latter then I suggest taking a good hard look at continuing to use this source for information.
Bear with me here, but I strongly suspect that this is not the case. Because PoS doesn't need miners, it seems the system can transition to PoS at any time and there's nothing miners can do to stop it. So unless the miners also happen to control over 50% of the staked ETH supply, miners don't have a say at all.
EDIT: Don't get me wrong -- I wish Ethereum could only upgrade with overwhelming miner consent. It would check the power of developers to alter the monetary policy as capriciously as they have done so far.
This is actually a current issue that's being discussed because the transition fully relies on the miners to make hand off the transition because of the contention with moving to PoS. One possibility is that miners will fork the chain, although that's not necessarily a huge concern because the community will follow the PoS chain. Another possibility, and I'm a bit fuzzy on the details, but it has to do with them re-mining the same block over and over so the transition block never happens (or something like that).
Correct
> Every soft fork was voted on by miners. Developers provide the code, but it only activates with miner consent.
Again, it's the same process with Ethereum.
Not sure if this is just a misunderstanding or if you're reading something that says this isn't the case, but if it's the latter then I suggest taking a good hard look at continuing to use this source for information.