Decreasing the block size would reduce the miner revenue long term as you decrease the usage by increasing the fees short term as you outprice businesses currently relying on bitcoin and forcing them to alternatives and fall again to the same policy fee rate. If you want bigger miner revenue you need to increase the block size to give miners the ability to compete better with alternatives by offering more bytes/transactions they can sell. Humanity won't reverse engineer into paying more for shit over time, the price for shit falls over time.