All you quoted about bitcoin layers can still be tracked and also needs a lot of money to be staked by rich people or pools (i thought you would actually quote dark web bitcoin mixers), bitcoin will be traced to KYC and it will be divided into controlled accepted coins and unregulated coins. At this time, BTC blockchain is coded to show all sats backway to their mining. Bitcoin has become an institution and all its thoughts are traced to austrian economy (not quoting that hayek would want to have concurrency in different coins). Thats totally different to monero, which was created as a TAZ (transitory autonomous zone) by cryptoanarchists, not meant to be a institution neither the only one used. It is meant to be used by the ones that want and need privacy. Would not be great for economy at all to bitcoin be full privacy as monero is.
Bitcoin is always going to show a clear path back to issuance, that's how triple entry accounting works & is one of the key innovations we need to prevent inflation & counterfeiting. Some of the richest people in bitcoin are anonymous cypherpunks who quietly go about their lives. Providing liquidity for more private payment layers helps them as much as it helps others. Privacy is still possible with traceable base layer txns. Moving money through other layers breaks the clear link to ownership onchain.