The whales always have the bitcoin and money to pump & dump the market. The price cannot always go up as there is a lot of manipulation in the market.
Also consider that people also earn money when the price is dumping by shorting through future trading.
I totally agree if you say that whales have Bitcoin and money to dump and pump the market. But you are less precise if you say the price cannot always go up. Actually, the price will always go up, Because Bitcoin is the long term investment, Try to compare the current price and the price 10 years ago. Stop care about whales, but you should care about the future, buy as many as you can