By the very nature of your argument if a Turing-complete blockchain isn't inherently worth something than a stack-based language which isn't Turing complete is certainly worthless.
I feel like your arguing with me for the sake of arguing? What's your point ETH isn't perfect, so what, it's relatively new tech which is exploring an interesting problem. The fact it's valued X _may be_ a fair evaluation or even undervalued given it's impact. The upside being possibly a DAO controlled by an AI efficiently providing resources to humanity in a way human's can't given traditional power structures. Or maybe fiat isn't so bad and we don't want robot overlords so we scrap it all. At the end of the day who cares, as long as your smart about the money you've invested into to the ecosystem you won't be hurt by a Black Swan in the cryptosphere. I think anyone working on ETH up to Vitak would have the same sentiment.
"that can be used for anything essentially" is a pretty wild claim to make if you can't actually back it up with useful algorithms to run on the network. This doesn't mean it's useless (you can probably run interesting contracts and stuff on the network), but stop trying to make Ethereum into something it's not.
By the very nature of being Turing Complete it can do anything any other Turing Complete language can. I didn't claim anything about ease of use...or really any wild claim at all, except maybe a DAO being controlled by an AI..oh well. My point explicitly is ETH is a Turing Complete decentralized runtime.
If you want to build a better language for interfacing with the VM your free to do so.
And if you're just going to use ETH to pay for real compute hardware in the cloud so you can run real software, at that point why not just use BTC?
Turing-completeness doesn't automatically make something useful.