Recently, it's become a concern that crypto whales can manipulate the market. Does this apply to altcoins only, or can these crypto whales manipulate all coins, including those with a higher market cap?
When you asked if this applies to altcoins only or ... I expected to see bitcoin, but you said other coins. Cryptocurrency is divided into two (bitcoin and altcoins). If it is not bitcoin, any other coin is called altcoins.
That being said, whales are known for manipulating the cryptocurrency market. In a real manipulation, no coin is above manipulation including BTC. But the chances of directing manipulating BTC is limited unlike that of shits coins with very little market cap.
So, you have nothing to bother because manipulation is part of the industry.