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.
if you want bitcoin to be a stable payment tool, the price should not be too high, because prices that are too high are very risky to fall, which is very scary for traders who use bitcoin as a payment tool for all their buying and selling activities. so standard and not too high prices are highly desirable for traders worldwide.