In the case of what people desire, their desires do not make it so. However, I don't see God's desire to be compared to what men desire.
I see God's desire that all be saved and come to the knowledge of the truth- to be what pleases Him. And therefore, I would take God's side concerning what pleases Him.
I should think that every Christian having unsaved loved ones would appreciate that it pleases God that all those loved ones be saved.
That thought in mind does make it so much easier to pray that loved ones will indeed be saved. It eliminates the idea that we really have to talk God into saving our loved ones. And, it eliminates the thought that maybe God wouldn't save a loved one.
I personally consider God's desires to be a blessing, not as you seem to make it sound, a disappointment waiting to happen.
As to what God desires, we are to have the same desires.
As we saw earlier, most sinners never repent, though God and we in CHRIST desire that, and we(many) have given our lives to the GOSPEL'S sake in CHRIST for HIS PURPOSE - as witnesses of what JESUS has done to free men from their sin.
We cannot make someone see spiritually, nor make them repent.
We can heal them physically, and we can cast demons out with a word, but
repentance is not ours to give someone else (not even for our own sons - our faith cannot save our own sons :
as GOD'S WORD says - they must have faith themselves.
Is most of the world dying a disappointment waiting to happen ?
Do you honestly feel that way ?
We cannot change the world, nor most of the world, and GOD does not tell us to.
Most of the world is heathen. - sometimes (today?) a "FIELD WHITE FOR HARVEST" (people ready and hungry to be saved, to hear the GOSPEL of JESUS)
.
So as in BIBLE, we too, can sow the SEED, (TRUTH AND GRACE),
and water the SEED,
and it IS GOD WHO GIVES THE GROWTH> (not we ourselves).
It is heartbreaking that multitudes are not saved.
When one sinner repents and is saved, ALL THE ANGELS REJOICE IN HEAVEN !
For one sinner ! IT IS SO GREAT A LIFE / GIFT of GOD !
And likewise, GOD takes no pleasure in someone's death, not even a lost sinner, not even those opposed to HIM.
HE sent HIS SON JESUS to die and be raised, so every man may have the HOPE and the JOY of HIS SALVATION and RESURRECTION LIFE !
So when someone rejects HIM, it is grievous. And fatal.