Bitcoin and other cryptocurrencies fell sharply on Dec. 4, in another sign that Omicron uncertainty, concerns about surging inflation, and firming expectations that the Fed will speed up its pullback of stimulus are feeding a wave of risk-off sentiment. By 8:14 a.m. New York time, bitcoin was down 12 percent at $47,177 on Coinbase, while Ethereum, the second-biggest token, was down just over 7 percent at $3,921 on Kraken. The total crypto market shed 16.5 percent over the past 24 hours, according to CoinGecko, which estimated the global cryptocurrency market cap at $2.31 trillion by 8:20 a.m. New York time. The crypto plunge comes a day after the Labor Department released its closely-watched jobs report, which analysts generally characterized as a mixed bag. While it showed that U.S. employers added a paltry 210,000 jobs last month, well below forecasts of around 550,000, it also showed the unemployment rate dropping a …