You need to pay half from your exchange when you made a little Payment
Then don't use the main chain for micro payments. Use Lightning for these payments, and keep the main chain for larger payments where you want the added security.
For now, if we like to save from fees and want transactions to be faster, we should use stable coins.
And completely negate all the benefits of using bitcoin by switching to a coin which is not decentralized, not censorship resistant, not immutable, and not immune to being frozen or seized. If you want to use a system with all these disadvantages for the sake of transferring the cost of the fees from yourself back to the merchant, then you might as well just go back to using a completely centralized fiat system.