This "phenomenon" was a big quest from my first days in crypto and I still cant really find an answer. Of course, all coins/tokens are affected from FUDs or Hypes, but it seems Bitcoin is not an but THE effect. lol.
So today I think there will be 1-2, maybe 5 coins that make the race. And I think the so called mainstream adaption, which is the key to everything else, is the community, is the fame and not(!) the technical things.
This may not sound very likely, but Bitcoin is in this list of survivors, even if not all problems will be solved, Lightning etc.