Nobody should complain of manipulation because no one can manipulate the entire crypto market..
Now i know you dont understand the present and the action of the whales and the arbitrage traders which are the market manipulators. Have a question for why is the whole crypto affected in the year 2018 January if i could remember correctly after Apple Co-Founder (Steve Wozniak) declared he sold all his BTC holdings?
I still don't want to call that manipulation. The dude had a large chuck of the total Bitcoin in the world and ordinarily him selling should cause a hell of a panic because the shrimps like you and I would think that something bad was going to happen to Bitcoin, thus the panic sales. It's the same thing that will happen on the stock market were Warren Buffet to announce that he would be selling off a particular stock he holds in large sum. It's business strategy. Manipulation would mean what some exchanges do. They would quote you a price but would trigger it at a different price higher than your buy or lower than your sell. Now, that's manipulation and not business.