There is a lot of evidence from the bible that God prefers right-handed people. Rather than offend God, shouldn't we just beat the left-handedness out of children ? For example:
Matthew 25:33-34...41 (King James Version)
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And he shall set the sheep on his right hand, but the goats on the left. Then shall the King say unto them on his right hand, Come, ye blessed of my Father, inherit the kingdom prepared for you from the foundation of the world:
…
Then shall he say also unto them on the left hand, Depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels:
Ecclesastes 10:2 (King James Version)
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A wise man's heart is at his right hand; but a fool's heart at his left.
Psalm 118:15-16 (King James Version)
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Shouts of joy and victory resound in the tents of the righteous:
“The Lord’s right hand has done mighty things! 16 The Lord’s right hand is lifted high; the Lord’s right hand has done mighty things!”
Proverbs 13:24 (NIV)
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Whoever spares the rod hates their children, but the one who loves their children is careful to discipline them.