Transactions in China have already dropped a lot, and their volume was picked up by nearby countries (mainly Japan). It's not the end of the world and I am sure Bitcoin will get back on track to hitting 10,000. That is a huge milestone and many people don't want it to go that high - that's why it keeps getting hit after hit after hit.
But in the end, the truth will prevail and cryptos will go up and establish themselves as major coins, taking over the world. It might not be as soon as many of us had hoped, but it will happen!