I think that the alternative coin would rise up too. bitcoin jow the rising rate is very fast and we called it as bull run. maybe the alternative coins doesn't do it as the same as the bitcoin but I am sure that the the alternative coin would rising too. and as I know, not all the alternative coin would dropping out. maybe the only not popular will drop out. but soon , we can see the color green of the market at all coins.
Yeah they are rising too but if you want to have higher profits, just have bitcoin as soon as you can. You have seen the other side when bitcoin starts to dominate the whole market, alts are putting down on knees which makes them red.
There are selected alts that won't be going along with the rise but there are also selected alts that will also join the ride.