Whales usually... Price will stay high unless they got bored and when they do, it will be a bloodbath. They keep the price high and make us wanna buy so they can dump their coins:)
thats true, bitcoin price is usually controlled by the people who have either a lot of fiat or a lot of bitcoins it is kinda bad thing because in this way it becomes centralized
So then who you thinks controls all the other markets out there?
In each of those markets you have people who have shitload of money and therefore can control or have a big influence on it.
You will not find any market where this problem does not exist.Big players are everywhere!
But having an influence on the price doesn't not mean Bitcoin is centralized.These market makers ave no power and saying for instance to change the core protocol and therefore increase the number of bitcoins in terms of supply for instance.
Right now they can easily play with Bitcoin regarding the price, but they can not control it.That's a big big difference you should always keep in mind.