the privacy problem is partially solved by HD keys and partially by the use of full nodes and tx broadcast using Tor and partially by running a full node so you can keep your chain queries private

monero's encryption trades off auditability for these three features that could easily be standard features of bitcoin wallets, but sadly aren't

reminds me, i really need to have a dedicated full node device

bitcoin's chain is still gonna be feasible to use for anyone who can afford the one time cost and occasional replacement due to failure of about $300 worth of hardware