Air travel contributes to about 2.5% of greenhouse gas emissions and is responsible for about 3.5% of anthropogenic warming [1]. In my opinion, there is an outsized amount of public outrage going on and we should be directing this outrage toward larger sources of anthropogenic warming. There is only so much people can take before they get fatigued. "Spending" this outrage on something that is only 3.5% of the problem seems wasteful.
[1]: https://www.eesi.org/papers/view/fact-sheet-the-growth-in-gr...