1) Bitcoin is sound money; ETH is a science experiment.
Bitcoin has a fixed supply of 21 million, making it truly scarce and non-inflationary. ETH, on the other hand, has an ever-changing monetary policy with no hard cap, meaning it can never be truly scarce or reliable as a long-term store of value. Real money is predictable and immutable - ETH can never offer that.
2) ETH's complexity is a liability.
ETH thrives on complexity with constant forks, upgrades, and new layers that are riddled with vulnerabilities (think hacks and exploits in DeFi). Bitcoin, on the other hand, is simple, secure, and battle-tested over 15+ years. Trust in money comes from stability and security, not from convoluted schemes like "DeFi yield" that regularly implode.
3) Centralization makes ETH vulnerable.
ETH's future is being dictated by centralized forces, like the Ethereum Foundation and big name validators (thanks to Proof of Stake). This centralization makes ETH more like fiat - controllable and prone to manipulation. Bitcoin's Proof of Work ensures it remains decentralized and censorship-resistant, making it the only real, hard money.
Bitcoin is money. ETH will never be.