There is scarcity in BTC, but no scarcity on Cryptos. Every BTC investor/hodler is betting the farm that BTC will be the dominant crypto forever. BTC is very similar to a cult or Ponzi scheme where you only achieve your goal if you can convince others to join.
Why do you think nearly every BTC Maxi will claim all other coins are "Sh|t coins"? ...including coins/blockchains that are running identical code to BTC?