'Whom he predestinated, them he also called'.
Election is the foundation-cause of our effectual calling. It is
not because some are more worthy to partake of the heavenly
calling than others, for we were 'all in our blood' (Ezek. 16:6).
What worthiness is in us?
What worthiness was there in Mary Magdelene, out of whom
seven devils were cast? What worthiness was in the
Corinthians, when God began to call them by the gospel? They
were fornicators, effeminate, idolaters. 'Such were some of
you, but you are washed'.
Before being effectually called by God, we were not only
without strength, but His 'enemies' (Col. 1:21). So the
foundation of our effectual calling is election.
"It is God who saved us and chose us to live a holy life. He did
this not because we deserved it, but because that was his plan
long before the world began--to show his love and kindness to
us through Christ Jesus." 2 Tim. 1:9
While on one level it's true that God opposes all unrighteousness, at the same time God loves righteousness and desires that all would be turn and be saved and live in it.
Those who will not will not be condemned because of the lack of God's mercy but because of their own unrighteousness and rebellious heart. However, the glory of God will be revealed in the gift of his mercy and righteousness to all those who will accept it and turn from their ways to God, putting aside the attitudes and deeds of the past and living according to obedience in Christ.