But, unlike transport, where you at least have an alternative (live in the city, ditch the car), if I have family on another continent, flying is the only way I can see them.
A poster above you posted a source that flying is responsible for around ~3% of global emissions, but you nonchalantly relegated it to the realm of "fake facts". Your fanaticism is helping no one here.
Regardless, both flying and personal automobiles powered by fossil fuels are a luxury that will soon be done away with, regardless of your appeals to conscience. Fuel will simply become too expensive (as we run out or introduce a carbon tax).
However, this is not either or, which fact is correct or not, this is a sum game. We all add to the problem.
Have those facts true or not, helped in any way to reduce the carbon output. 2-3% might seem insignificant - it may be the 2-3% that tips us into a runaway climate.
So, move near to your family, help save 2-3% per year. I did.
Anyway, making yourself feel better by arguing with me, proving me wrong won't alter the amount of greenhouse gasses in the atmosphere. Stopping flying will. You have a choice.
But, given the choice, I would rather remove my 2-3% of emissions by cutting meat consumption by 90% and/or driving.
Your original post was just yelling at people to stop flying, as if there were no other ways to alter a personal consumption pattern. That's what people took issue with.
I'd say stopping eating meat will be a lot harder for people than stopping flying.
Unfortunately, for a lot of people there are no viable alternatives.