A wish is just what it is until it's put into action before it's regarded as a threat. For now, I think OP (or any other person) shouldn't take whatever people mouth against ETH to heart. Perhaps they make such utterances in frustration against the high gas fees of ETH.
One man's trash... another man's treasure. Ethereum is one of the coins that I believe in, and will continue to strive as the community that serves it grows.
ETH is focal to the crypto circle because of its smart contract and I can only but imagine how sordid the market will look if ETH fades out. That won't be a good sign to hope for. ETH is a treasure in this regard and I don't think anyone will justifiably say it hasn't contributed meaningfully to the crypto industry.