suppose that we are in a future where miners only get paid in transaction fees and the lightning network is heavily relied upon to compensate for having never implemented dynamic scaling. Online merchants who want to process millions of transactions a day around the world utilize a system where one on block transaction opens the channel for the day, and another on block transaction closes the channel for the day. All transactions that go through their payment system is taken care of in one go keeping the fees low for everyone sending transactions between the two companies. However, the people who initially send the coin to those centralized wallets are going to pay extremely high amounts which would discourage independent wallet usage (and increase the risk of what happens when centralized companies go out of business). Meanwhile, the people who just want to send money to someone across the world wouldn't benefit from the lightning network at all since they are dealing with just a single transaction, so they have to pay more as well.

The reason why everyone is stuck paying more is because anyone with multiple transactions just processes one, which means that the cost has to be spread across fewer payers, and those with less transactions ultimately pay the most.