If bitcoin really became the backbone of the world's financial system, as every bitcoiner dreams of, it will be impossible for anyone to have a transaction confirmed on the main chain. The fee price will be so high that only corporations, financial institutions and governments will have the cash flow to do it. Second layer solutions demand a main chain transaction, so it won't help. Even early adopters will be forced to move to second layer solutions.
At this pace bitcoin is becoming a tool for the system it was created to destroy.
Bitcoin transaction fees will remain high as long as there are abnormal rates of transactions. The reason why the transaction fee increases when a vulnerable transaction starts is because the transaction with the highest free will be confirmed first. That's because the block always gives the highest priority to the one with the highest transaction free. In this case, many are willing to pay high fees to complete the transaction quickly, due to which everyone is demanding high fees. And thus the transaction fees only keep on increasing. Again, when the transaction volume returns to normal, the free comes down again