I think the argument that Monero doesn't have any applicable real world use is just as applicable to Bitcoin, and to pretend it doesn't makes you intentionally daft or utterly delusional.
Bitcoin has number go up 🤷♂️ Monero would be cooler than BTC if it had the market cap. But would it be accepted in more places than Bitcoin is now? You don’t get a shot at replacing the reserve currency unless the governments think they can coopt BTC. Monero on its own could not do this.
Ecash isn't Bitcoin. Virtually no one accepts ecash.