Can't agree with this claim. The price of a decentralized asset can't be controlled by a handful of players. There are more than 18 million coins floating around and in order to manipulate the price, these guys need to accumulate at least 30%-40% of the circulating supply. And if they try anything like that, then the prices will end up at six digits (or much beyond that).
It is true that these people and big companies can not control this market alone, but let's look at the past.
When it comes to high profits or big money, such people and big companies work together even if they are on several different continents.
These policies will never change, and Bitcoin is one of them, and there may be many other things in our lives that we are not aware of.
In order to manipulate the prices, these companies first need to create scarcity in the market so that they can push the prices upward. After that they will try to sell their assets at peak prices. Now this is going to be beneficial for the individual investors as well. All that we need to do, is to sell our coins at the right time. This is not applicable to those who want to HODL for 10 or 20 years, but for those who are not averse to profit booking at regular intervals.