We know that Lightning network is already there but it hasn't been able to take off yet, not many are using it. Why still bitcoin old network is preferred over LN? Its because we still dont trust this new concept.
Since LN is not really Bitcoin, Bitcoin cannot do much about it. It needs WALLET support, for it to be used. If core puts it in the official wallet, that probably helps, but i think its the light wallets like Electrum that will change the game. When the (true) v4 Electrum release comes out, which is aiming precisely for LN support (please people, stop falling to the obvious v4 Electrum fakes out there, stick the official page and sign check any binaries you download from official sources)
I don't particularly care for LN much, but like it or not, that will offload the transaction traffic at least somewhat, enough for Bitcoin to remain useful without any radical changes.
There is no "trillema" at all, because there is no scalability issue either. If you think Bitcoin is unsuitable to buy coffee, don't use it for coffee.