The question is: What truly intelligent life in the universe – would destabilize it’s own ecosystem?
Well only a stupid one – that is either unaware or is aware but wants to commit suicide – because it’s easier than change decadent decades of (largely useless and meaningless but very superficial funny) lifestyles.
In their 170 million years of existence – the Dinosaurs could not bring their ecosystem out of balance – they were “too stupid” to come up with fossil fuel burning machines – a meteor took them out – but that was an accident.
With mankind’s technology – we might could deflect an incoming meteor (if we were able to detect and see it “on time” – also not guaranteed) – but we can’t protect from ourselves?
Or the dynamics that money and energy have taken?
That said – mankind likes to actually save energy – therefore the hate towards “change”.
A lot of people fear just truth more than change. (especially if scientists of economics – the priests of the monetary system – after decades – ought to – change or adjust their world view… they simply refuse.)
But nothing will work without love and truth in the long run…
If you are going for the short run – go ahead kill your children – before they return your favors.
You can not build a kingdom of fear, corruption and artificial scarcity and expect it to last.