You are of course free to, but I think your opinion has an air of elitism and condescension, so I'm expression my own opinion to criticize it.

How so? Please read the comment again. Where is the exact wording that made you feel that way? I can correct it.

You were agreeing with the statement "I feel sorry for the people who lose their jobs because of this, but I think less air travel would in many ways be a good thing for the world. ".

That necessarily implies that fewer people should be able to travel.