Bitcoin’s (CRYPTO: BTC) ever-bearish commentator Peter Schiff commented on the crypto king, foreseeing its biggest crash and a potential MicroStrategy (NASDAQ:MSTR) bankruptcy. What Happened: In his latest appearance on Patrick Bet David’s podcast called “Valuetainment,” the economist explains how Bitcoin is going to witness its “biggest crash ever.” The route to the crash is: Speculative ETF buyers decide to sell.ETFs must take Bitcoin and sell in the spot market.”There won’t be enough liquidity to absorb that selling” and prices will crash.After ETFs receive sell orders, BlackRock and other …