True. If #BTC is only usable through L2s then BTC is in a very fragile state. All it takes is one cycle where BTC does not pass its all time high before the Ngu crowd to abandon BTC. At that point BTC is nothing special and all the L2s can quickly ported to any BTC like coin like #LTC or #BCH or even #Monero. Note BTCpay server And Bisq have peen ported to other coins so an L2 port is very doable. When that happens be prepared.