When you think about it, human extinction would actually not be so bad for the world.
I think humans deserve to go extinct eventually and that's because humans are so selfish, egoistic and some are even cruel and sadistic.
We let some people become so wealthy at the expense of millions of poor people in Africa who live on less than 2 dollars a day (these poor people have virtually nothing) while the wealthiest person on Earth owns 200 billion dollars in networth.
Human selfishness and greed knows no limits and is the cause of so much misery and suffering for others.
So lets face it:
Humans are a shitty species and we deserve what's coming to us eventually because of our greed and selfishness and that's EXTINCTION.
The only thing humans deserve is no better than to become extinct and be replaced by a better, more moral, more friendly and less selfish and less sadistic species.
Humans greed is never ending.
Every single one of us need to die.
This world will survive just fine without us.
We just saying to ourselves that this world needs us and that is to give us permission to take everything (and also to destroy).
But the sad truth is we are all digging our own graves and we taking every living thing with us.
Sad but that it is the truth. If we want to save this world (from ourselves) we must die.
Humans are the only species that can't live in harmony with nature.
Our science has been able to keep nature down, But it's getting to the point where nature will win eventually.
And guess what: Our science won't be able to save us this time and our intelligence won't be able to save us either. The most it will be able to do is slow down the parasite natural extinction.
The only way for mankind to live is to live within the limits of nature. But human stupidity and greed won't allow us to go back to those good old days. As human nature is only meant to take and destroy.