You have to take in consideration the fact that bitcoin and cryptocurrency are a multi billion dollar industry, bitcoin is on its way of becoming the first in terms of investments, and for this type of market to be manipulated it is not an easy thing to do, poeple have been always been talking about the fact that bitcoin is not truely decnetrelized due to the fcat that china holds a large portion of the mining power there, thereore the chinese could easily manipulate the prcie, but with china out of the way and the governement slowly taking sever actions against bitcoin mining, that idea is going to be out of the way and bitcoin could be truly decentrelized.