I'm afraid it's impossible. You're fighting a losing battle. Bitcoin's global public ledger records every transaction forever, making it less private than a corporate bank account. Chain analysis firms (e.g., Chainalysis, Elliptic, Ciphertrace) track transactions, de-anonymizing users and enabling surveillance, leading to worse privacy than traditional finance. If on-chain privacy is not default from the beginning, it can never be private. Also, multi layer systems will always have a larger attack surface. Layer-2 privacy solutions thus simply cannot provide comparable privacy guarantees to Monero.