It is widely believed that the earth is in a balanced ecosystem, then humankind breeds and cause destruction.
To simplify the idea, let's assume the total number of species on earth before humankind was 10 000 000.
And then by any means, humankind arrived and the number was added by one.
And then BOOM! The balance of the ecosystem started to decline.
That is quite illogical. I don't think it is the mere presence of us, the humankind, that should be blamed.
It is our deliberate and conscious choice to become greedy, dishonoring our large frontal lobe.