Bitcoin isn't "down".The bitcoin price is where it is and we shouldn't compare it with the 2017 bubble.
If we want a higher bitcoin price,we should buy more btc and convince more people to buy btc.This is the only thing we could do(and it's not enough).The crypto whales will have to start buying.
The price of Bitcoin doesn't be affected only by selling and buying orders. If you think that then you have no idea what the blockchain technology is about and what can offers.
This ecosystem can thrive by increasing the utility and bring more users to the system. Order books in exchanges doesn't guarantee growth. But more transactions and more users do.