Nothing is black and white, for me Monero is the only relevant Altcoin (as opposed to all the other shipcoins) BTC for store of value and unimportant transactions, Monero for private "cash-like" trans...
There is a GUI update to Bitcoin Core that would make the wallet a massive CoinJoin with everyone transacting on Bitcoin. You could use this to peg into the zcash sidechain, and have absolute privacy. Nobody would even know you WANT privacy. We will be getting this soon with CUSF.
🤙1