Bitcoin most definitely shows not only ETH but everything else out there who is king. The market dominance shown on CMC is around 68% at the moment and with so many fake trading volumes it might be impossible to ascertain the real figures but either way Bitcoin is way out in the lead.
Nevertheless, the good news for altcoin enthusiasts is good altcoins will still be there, they will not die. Good altcoins, not shit altcoins, though.
including ETH still exists and still has a lot of followers to date even large holders too, I am only a small holder of ETH at least I believe this more than other Altcoins that may not necessarily be able to develop following the movements of bitcoin prices, bitcoin will continue to dominate all crypto markets , the price of ETH is still really cheap at this time where many people can afford to have 1 to tens of ETH of their savings, since yesterday ETH began to increase following the price of bitcoin