Nobody gets to know ethereum or ADA or binance chain before hearing about bitcoin. Bitcoin is the main reason for this whole ecosystem and all altcoins to exist.
Thats true and if btc ever reach a 2k price. Dont expect the altcoin markets to be still alive, for sure many will died out and only those major and sustainable project can survive a heavy impact like that.
Bitcoin will be the leader no matter what. So dont be shocked everyone, to see a bloody market if btc not moving well.