It seems that you’re arguing with a straw man because these bans which are being talked about are for road transport, no government is proposing to ban IC ships

It seems that you’re arguing with a straw man because these bans which are being talked about are for road transport, no government is proposing to ban IC ships, trains, and farm and construction equipment over that time frame, although it will likely be the case that a programme of electrification will be continued and stepped up. Similarly I don’t know why you’re talking about steam engines, they are totally insignificant.