Bitcoin uses about 100x more energy than ethereum, has 5x less throughput, and doesn't natively support smart contracts. There's definitely also room for ethereum.
There are other cryptos which have most or all of the advantages of Ethereum with minimal downsides. I don't want to come across as shilling any particular bag, so I'll be vague and say there are chains with reasonable amounts of activity where transactions take seconds and fees are $0.00x or $0.000x. This actually is disruptive and interesting compared to fees for Stripe/Braintree or even Mastercard/Visa.
The reality is that if Ethereum released today with its capabilities, it would not see widespread adoption. Its position today is purely because it's the incumbent smart contract chain.
Other blockchains that advertise smaller fees and faster transaction times all sacrifice on decentralization and/or security, and would not retain those advantages if their usage was at the same scale as ethereum.
Satoshi doesn't even say anything and hasn't for a very long time.
That's not supposed to happen if everybody follows the supreme leader.
Ethereum is better than the other complete scam coins, it's not a total scam. But it's not really permissionless and decentralized like Bitcoin.