I had some words for you friend.Bitcoin is decentralized currency,so no one will control the bitcoin price.You no need to worry for this,it's minor fluctuation.The whales can hold the price for a moment.But they can't control for longer period.This is the unique features of bitcoin over other Crypto.
I agree, it's decentralized and very hard to manipulate but whales still do it and when they do prices skyrocket or dip. Either case is a chance to make money, either by accumulating cheap BTC or by selling when reaches it's peak. Whatever the case is, BTC will exist for a long time or maybe even forever.
You are wrong. I admit that bitcoin is decentralized but is not uncontrollable. Big investors manipulate the market and change the price according to their well. They are ducking us and we do not understand. The big pump and dump was not natural. It was planted and the result is that many people made huge profits while new investors lost their money.