the necessary changes to effectively combat this environmental catastrophy would mean a complete upheaval of our lives
Yes. But that doesn’t mean it makes sense to frame things as being about who is ‘good’ and who is to be blamed, or that the impetus for change should be personal initiative to adjust away from unsustainable lifestyles. What’s needed is uncompromising policy solutions, and ones that are designed by experts to actually have a direct impact. People often get confused about what matters and what doesn’t, and proportionality. For instance restrictions on plastic bags at grocery stores is totally negligible for climate change, and arguably makes the situation slightly worse. Meat consumption has a significant impact globally, but in a first world context is relatively insignificant compared to the other things we do to create emissions. The problem isn’t that people aren’t choosing to live virtuously, since even if they did many attractive definitions of virtuous would not produce the needed results, and realistically that is not a viable way for human behavior to be adjusted anyway. The problem is that the circumstances around us shape our lives, and impel us to live in an unsustainable way, and that is what has to change.
Basically I think it just has to be more things like, accepting that deliberately high gas prices are a necessary sacrifice for the wellbeing of humanity, rather than asking everyone to choose to drive less and pat themselves on the back when they manage it and feel shame when they do not.