Was thinking more about this.

If the transactions that fund Lightning can’t end up being accepted by miners on the main chain then the whole thing falls apart.

In the future you describe - I think we both agree that mSats will be valuable - likely enough to pay for blockspace - such that the dust limits will need to be rewritten across every transaction that’s still enforceable.

Some group of great Bitcoiners will figure it out and will it through.