I don't want to bother about this, because my knowledge of crypto is still lacking. what is clear in my opinion is that if bitcoin is still alive and definitely altcoins it will also live, and also in my opinion not all altcoins will die even though bitcoin is dead. especially if bitcoin lives or rises from the dead, surely altcoins will also live. and in my opinion it is not quite right for you to use the word dead bitcoin, because bitcoin never dies. because altcoin or bitcoin dead and its life depends on buyers, enthusiasts and holders.
Bitcoins has never died, not even once. Those anti and weak hands were the only ones calling Bitcoin dead when there was a very sharp dip.
There has been too much trust in Bitcoin coming from the crypro enthusiast, not to mention, Bitcoin is the only basis on majority of altcoins' value. So, there is no way Bitcoin would die first before anything else in cryptomarket.