Why do you blame an entire generation of people? You think the average Joe is directly responsible for climate change?
You can blame leaders, politicians, etc who actually had the power to change things and the responsability to be aware of climate change and take action.
And if you say "yeah but they elected the politicians" I don't know what it's like in Sweden but in a lot of countries you have no meaningful choice. You have Trump vs Biden kind of options, always having to vote for the "lesser evil".