Such price drop is inevitable. China wants people to dump BTC and then will wait to let the price fall, will buy tons and sell again when price pumps. I am expecting price to fall as low as 1.5k$ in the next four months. Several free promos and offers will show up and people will buy BTC again to make the price rise to 4k$ again. Pumping of price is common nowadays, that's why people buy Bitcoins. It will lose its reputation when it gets a stable price.