Seems like the entire market is directly related to Bitcoin.. Doesn't suprise me, as it has been like this for the entire existence of cryptos, but in the near future i think some coins will decouple for Bitcoin and be able to trade on their own without being affected by other coins' price swings.
That's right,if BTC drop then the most of altcoins also decreases its value,but maybe some are selling for profit at that time and some others are waiting for that fall to be able to buy cheaper and that cycle of ups and downs happens continuously,I suppose it has to be a normal behavior in any kind of market,moreover I cann´t imagine myself seeing to any ALT decoupling directly from the value of BTC since they are intimately related.