With your logic Bitcoin gold (Equihash dec same as BTCP) (Its almost exactly the same coin) should be 1000$ too? BTG is crashing cuz none wants a wannabe dec Bitcoin. Thats hwy BTCP wont be even close to BTC
BTG is not Z coin, there is a huge difference. Z coins provide anonymity that BTC, BCH, BTG and any other coin doesn't have (BTCZ has, but too high max supply to be a competitor). Markets are not crashing because of "wannabe dec Bitcoin's". Markets are crashing overall because all the FUD happening around cryptos. Many people cashed out and are afraid of possible regulations. Overall crypto market volatility is on red level and having a bearish run.