Its true because its a fact that most altcoins are dependent on Bitcoins price. However if the Bitcoins prices improve so the altcoin does. Lets understand tha hate but the market in general is still struggling to recover from what it had experience in 2017.
It is true there is an important correlation between bitcoin and the price of most altcoins but at the same time during the last years altcoins have moved more independently from bitcoin but the problem is that this mostly applies when bitcoin is moving up and altcoins instead of moving up with bitcoin they do not move at all or their movement is many times smaller than bitcoin and it is why altcoins have not been very profitable during the last years.