It's not going to zero... when price drops we should wait for recover because nothing can be stable and price changing. Market is just living his own life.
Yes, we really depend on the crypto market to make a living. But we should not invest blindly. We should consider the market carefully. In this world, anything is possible. Today the crypto market is huge but the next day the crypto market will probably collapse.
We should watch out for the crypto market because we do not know what will happen. So we should invest half of our assets, not invest all.