If you had one thing to end/delete in the world, what would it be ?

[الميستر حشيشة]

Hi Ladies and Gentlemen
How are you doing ?
Well, here we are again with a new Thread
and our Thread's topic for this time is :
If you had one thing to end/delete in the world, what would it be ?
It is just simple as that
and, make sure to support your idea with some arguments
I'm waiting your replies my friends
Cheers and choose wisely