So one person talked of reductions but didn't say how large or small those might be. The other quoted post is a little extremist and I don't consider it representative of any widespread views.I haven't looked too far back but:
The Paris -London air market has steadily reduced as Eurostar has been sped up. HS2 would have done the same for London - Scottish Central Belt. Those are reductions, would you oppose those?
The French have introduced a rule where you cannot offer a flight where a train service exists that manages the journey in less than 2 1/2 hours. There are a few too many loopholes for my liking, but would you oppose such a measure being adopted elsewhere?
Would you oppose taxing kerosene, just as you pay duty on petrol? (we'll leave the question of bunkering to one side here, we'll assume for this scenario that it was a pan-European tax)
Would you oppose a frequent flier levy? Taxing those who travel most often.