The thing is, it requires a higher liquidity to manipulate cryptocurrencies and so whales decide to target coins which have a lower marktecap.
It becomes easier to them to manipulate the price and this is reason why we haven't seen large cap coins being manipulated.
Come on guys, no need to deny when fact has been that all markets are open to some sort of manipulation since the time we could click on our computer to buy or sell something. That's at least 15 years before crypto exchanges.
Remember when toilet paper was scarce and even oil became negative price? You think that's not manipulation?
I think we need to grow up and just move on. At least BTC is not as exposed as shitcoins.