Alts are not dead, just now a lot of alts that are on the bottom, will change over time and alts will start to grow
Altcoins have not been dead, and they have on the way to their latest peaks, that they reached around end of April and early weeks of May. Bitcoin will shows its clearer signals of serious falls and corrections, that are normal because bitcoin has been in its reconsolidation phase. Within that phase, bitcoin will need months to finish, not days, not weeks; and you can imagine if bitcoin won't rise soon, how whales can earn money? Yes, they can earn money from altcoins.