So, don't sell to them instead, hold patiently and in matter of time depending on your goals and assets values, you could imitate them (whalers) or could even be one in the future.
You don't keep bitcoin forever; you sell them, you rebuy, and you also can't be imitating someone who is not in competition with you and someone whom you are not in the same financial position with.
Yeah, I think this is also one good strategy, it doesn't mean that when you sold, you can't rebuy at a lower or higher price. You can reset anytime. Maybe you sold because there is some kind of emergency that you needed funds so don't think twice of dumping your Bitcoin and then rebuy it later.
If we are all holding our bitcoin and we don't transact with them from day one, there is no way that bitcoin could have gotten to where it is today. Money wealth distribution is allowed, and at the end of the day, almost a large number of holders are all in for one thing, which is making profit, so what's the point when you are actually going to sell off one day? And mind you, you can't secure all the profit.
That's Bitcoin's liquidity, and the market is open 24 x 7 and everyone can trade to make profits. That is the beauty of Bitcoin, many are trading in millions or even billions everyday. You can convert your Bitcoin anytime to cash and won't affect the price itself.