Lightning is not anywhere near as private as monero. It's a band aid at best. If it was actually private it would get banned and suppressed like monero.

This is just an ignorant take on the technology used: https://x.com/SuperTestnet/status/1917510496376197446

Monero has other things working for it though, like the absence of liquidity issues you might face using Lightning.

Then let’s write a nip and create a Nostr client that uses monero. What are you waiting for?