What is the ruling on saying about the mentally disabled or those with Down syndrome that "they are God's people" or "they have something for God in them"? Is there any impoliteness towards God in this statement? And should the person who says it be rebuked?

The saints (Awliya' Allah) are the most perfect of people in intellect. One whose intellect is gone is not held accountable, so he cannot be described as a saint, nor are his deeds valid. All deeds are unacceptable without intellect, and Allah praises and commends those with intellect. Whoever believes that mentally disabled individuals are closer to Allah due to their disability, his belief is false. A saint of Allah is one who is obedient to Allah, and obedience is only incumbent upon one who is accountable, and intellect is the basis of accountability. A madman born among Muslims has the same ruling as children; he is considered a Muslim by virtue of his parents or the people of his household. This does not make him one of Allah's righteous saints.