This implies low onchain fees are a pre-requisite for off-chain, lightning network scaling, if i'm understanding this correctly.

High demand can be met by LN but it also makes using LN even more impractical. LN is supposed to be the solution to scale bitcoin to 8 billion people, but demand by even custodial services can't meet that demand.

Add to this, LN node disagreements are already leading to isolation between popular wallets...

I did not vote for taproot or lightning by the way.....