LN is not a present solution
and suggesting "bitcoin do nothing, everyone use LN" is not the solution

there are reasons people need to use bitcoins confirmation settlements. there are pitfuls of using other systems so trying to suggest people should move to other systems and stay away from bitcoin wont be helpful either..

yes subnetworks have a niche. and in the future new better ones will be made to meet the crtieria they were made for. but confirming/settling on bitcoin will still be a need so things still need to be done to bitcoin.

and its not just "bigger blocks" its actually
leaner transactions.
count every byte, make every byte count
condition all transaction formats to perform, whereby every byte serves a purpose.
limit the transaction overhead computationally
make spammers/bloaters personally penalised to not cause everyone to be expensed out of using bitcoin
penalise spammer/bloater by enough of a multiple that they actually stop due to the expense

all these things can help make genuine bitcoin transactors able to confirm/settle their transactions with less remorse of using bitcoin.