My god is so powerless, he can't even keep his own people from committing atrocities.
That is something people should understand why.
To simplify things - there are two kinds of people - God's people and Not God's people.
God's chosen people - those who are born of God and thus cannot commit these atrocities.
1 John 3:9 New International Version (NIV)
No one who is born of God will continue to sin, because God’s seed remains in them; they cannot go on sinning, because they have been born of God.
The Devil's children - those who were deceived, lovers of themselves and filled with love of money - the source of all evil
1 John 3:10 New International Version (NIV)
This is how we know who the children of God are and who the children of the devil are: Anyone who does not do what is right is not God’s child, nor is anyone who does not love their brother and sister.
So, there are people who belong to God [and they are few] and people who does not belong to God [and they are many]. Those who do not belong to God commit atrocities, as we have seen some of them.
The atrocities have to happen to mark the ends of the earth and the latter times.
Matthew 24:6 New International Version (NIV)
You will hear of wars and rumors of wars, but see to it that you are not alarmed.
Such things must happen, but the end is still to come.
2 Timothy 3:1 New International Version (NIV)
But mark this:
There will be terrible times in the last days.
So that all people in the ends of the earth would prepare for their salvation:
Isaiah 45:22 New International Version (NIV)
“
Turn to me and be saved,
all you ends of the earth;
for I am God, and there is no other.