Most people don't spend a lot of time wistfully considering their CO2 usage, myself included. The religious zeal by which people feel the need to tell me about the ever-warming planet is honestly more off-putting than most actual religions.
Of the very few "f*cks" I can give in my life, I prefer to spend mine as I choose rather than being scolded for not giving mine to the pressing issues that others deem important.
And this is it. This is why we are where we are today. That it is seen as taking a religious zeal to realize how flying very frequently is disastrous for the climate. That's our bar and what we have to work with. Yes, we are properly fucked.
The thing is that everyone alive today and in the future is footing the bill for that indifference. It's nice that you don't care, but it's not something I'd brag about.