I am bearish on Ethereum, and everyone is criticizing me?

That's because Ethereum has an unlimited issuance mechanism, which is its fatal flaw. Although Ethereum has a mature ecosystem, having many coins with mature ecosystems is not its advantage. Bitcoin has a fixed supply of 21 million coins. Currently, the amount of Ethereum being minted is far greater than the amount being burned.

The only way to make a severely bleeding man strong again is to stop the bleeding, not to keep feeding him supplements.