Not possible to go to the zero. I never see any FUD other than some people were complaining about the movement from ethereum from POW to the POS but this mostly done by the POW maximalist. Just seeing the market right now to know about the truth. I don't even think bitcoin will be going down to the zero again along with ethereum. People were using ethereum smartcontract and this always giving valuable reason for the price of ethereum will still remain the same at this time.
You shall not call any bad comments as FUD and some time if that was just a critics.
I think Ethereum can go to zero, and it is possible if the merge or sharding fails. I think Ethereum should just stay the way it is and the team should focus on something else like L2s and leave things like high TPS and sharding to other projects like CNDL chain. Since there is so much value on the ETH chain, it's too risky to do major upgrades like this, it's akin to trying to replace the spark plugs on a car while you're driving down the highway at 65 MPH.
i don't say zero thing to ethereum coin. what about other projects that stand on the ethereum network, I think it's hard to zero. always in bear season a lot of people will say some altcoins will fall or die not with that much thought behind it. only coin memes will end in the current season