Nobody will ever change their carbon footprint because of what someone else tells them. There will always be someone worse than them who they can point to and say, “Well I’m not as bad as them so they should change.
If people cared at all about this, they’d change their own behavior. And it’s fine to not care about this at all. And it’s also clear that people don’t care about this at all or they would change rather than hope that someone else will change.
Politicians are incentivized to get elected so don’t expect them to do anything that would risk that — like making laws that inconvenience the people who vote for them or give them money.
Whether I eat meat (I don’t) or Taylor Swift flies in a private jet (she does) doesn’t matter at all when it comes to the environment. That ship has sailed and the effects of climate change are pretty much baked in at this point. The hope is that I’m wealthy enough (in a global context) to avoid any real inconvenience to myself before I die.