Earlier quoted context omitted.
Hank Green did a good short video on this: https://www.youtube.com/watch?v=bvAznN_MPWQ TL;DW: It is important that individuals show that there is a real problem and that they perform actions that address the problem. This demonstrative behaviour leads to social dynamics where more people feel encouraged to perform actions and to drive larger change. You need to start somewhere.
We know there is a real problem, awareness is not the issue. (I've been aware of it since the mid 90's) It is ignored by large industries and governments. The incessant pounding of the useless drum of individual action continues to go absolutely nowhere. We need government and industry to take action not individuals. I will no longer placate this idea that individual action is at all useful.
Here in Europe even before Trump’s second mandate it was clear governments didn’t really want individual action to take off. And it’s even worse now. Because short and mid term it’s a choice between climate and GDP. And western governments and companies are fundamentally incapable of long term action that is painful short term.