We don't have the evolutionary intelligence to manage a planetary ecosystem without destroying it through overconsumption.
Intelligence is partly about scope. The smarter you are, the wider your predictive horizon.
Humans are semi-smart - good at small/medium problems, not smart enough to understand, build and maintain very complex multimodal systems with many moving parts.
Ecosystems we dependon for survival are shrinking, becoming I hospitable to life or straight up disappearing.