BTC is pioneer of the market in every respect. The rest are followers. Although there are some altcoins which show a good performance, BTC creates demand and dominates market. But altcoins provide some opportunities which shouldn't be missed.
Yes, right, like what we are expected from the coin that started the crypto world for the first time and also many who hoped like that. As often happens, if bitcoin goes down, there will be many altcoins that are carried away by him. But I see that brings more negative effects to altcoins because it's are difficult to be stable.