tl;dr: things are bad, things will get worse, be angry at the criminals, not those sounding the alarm

We've known what we're in for for half a century, meanwhile governments have kept catering to fossil industries. What's being destroyed by governmental inaction dwarfs that what you accuse these groups of (art has not been destroyed) and at this point I'm not surprised that people are looking to more disruptive and direct action.

We've had scientists do the researching and informing, public interest groups do litigation, NGOs trying what they can themselves, etc, yet we're still headed to a degree of climate destabilization where large ecosystem tipping points may well launch us into uncharted territory - and even if not, we're already past the point of 'dangerous' climate change and that's something we'll have to bear the human, societal and economic costs for.