You are using your human value system to declare humans unworthy. This is a human thing to do. No other creatures reflect on the impact their existence has on the environment. Viruses don't. Crickets don't. Not even the planet itself, nor the entire universe, cares whether humans even exist or how they carry out their lives.
It's only humans who have evolved a brain capable of making such assessments and using that to inform their behaviour. Can we use this power to rise above the bloody law of nature? Can we create a world that is fair and just, even in an uncaring universe built on the cold unbreakable laws of physics?
You think your assessment that humans are a scourge on the planet is objective and clear, but you miss your own anthropocentric blindspots. Like it or not, your stance is not unique, on the contrary many humans also question the direction our species is going.
The withering criticism of human activity by yourself and the many others like you is simply evidence that humans are *not* wantonly devouring the planet with no thought for the future, unlike the cricket plagues you liken us to.
Whether that is sufficient to save our society remains to be seen of course.