The worst thing about political activists is that in general these types of people have never built a real world solution to anything, especially large scale problems. These people will always be obsessed with the next ideological struggle allowing for more and more protests, demonstrations, riots, and revolutions instead of coming up with workable solutions to material problems.

Like problems politics and awareness are useful for, activists see the climate crisis as an ignorance and malice problems with easily solvable lack of awareness and systemic oppression. Maths, logistics, economic, and practical engineering considerations don't enter the arena in emotionally satisfying ways so they are considered trivial or already solved. Most activists would have no trouble cancelling someone because they said something mistaken once a long time ago. Maybe this is changing, but only because of public backlash. Not because they actually understand the consequences of publically shaming someone.

/s

Do you get it now? That's what it's like to be told you are the problem and you aren't capable by people who themselves can't solve this issue independently. If climate change is ever going to get solved we are going to need technical solutions while also trying to change things like systematic oppression and the problematic aspects of capitalism. Things like solar panels and wins turbines come from engineers not political activists. Carbon taxes and shale gas bans come from political activists. We need to work together, not be at each other's throats.