Mercy is not merit based. It treats people better than they deserve.
Mercy is compassion and/or forgiveness shown to someone who has done wrong. It’s not the approval or justification of wrong.
To dehumanize, disrespect, and/or kill a human fetus is merciless and dehumanizes all humanity.
God’s mercy and forgiveness will transform your heart and reboot your conscience. Lord have mercy. There is no one who needs no mercy. (Romans 3:23.)
Grace combines judgment and mercy. Christ takes the judgment you deserve so that you can be set free. It’s amazing! However, religion without a relationship with God is empty ritual.