Why did God let obama get elected? Why did He allow WWI and WWII? Why does HE allow any evil?
There's a purpose and we don't know what it is, but its continued existence is not an indicator of God's favor or blessing on it.
I know you know this, but to draw us closer to Him. The world is fallen and thus Christ's redemption of fallen humanity is necessary.
It's in this context that Romans 8:28 is even more comforting.
"We know that all things work together for good for those who love God, who are called according to his purpose."
Bless your day.