(Reuters) -The lending unit of crypto firm Genesis filed for U.S. bankruptcy protection on Thursday, owing creditors at least $3.4 billion after being toppled by a market rout along with exchange FTX and lender BlockFi. Genesis Global Capital, a leading crypto lender, froze customer redemptions on Nov. 16 after the collapse of major exchange FTX sent shockwaves through the crypto sector. Genesis is owned by venture capital firm Digital Currency Group (DCG). Its bankruptcy filing is the latest crypto failure triggered by a market collapse that wiped about $1.3 trillion off the value of crypto t…