They say, “All wisdom is God’s wisdom so you can find God’s wisdom in other religions.”

No.

The book of James tells us that God is the one we should turn to for wisdom.

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If any of you lacks wisdom, you should ask God, who gives generously to all without finding fault, and it will be given to you.

James 1:5

This was John the Baptizer’s role, to turn people back to the wisdom of God.

And he will go on before the Lord, in the spirit and power of Elijah, to turn the hearts of the parents to their children and the disobedient to the wisdom of the righteous—to make ready a people prepared for the Lord.”  Luke 1:17

Oh, the depth of the riches of the wisdom and knowledge of God! Romans 11:33

Why would we want anything else?

The Bible makes clear distinctions between God’s wisdom and “worldly wisdom.” Worldly wisdom is “futile,” “foolishness in God’s sight,” and “unspiritual, demonic.” But wisdom from God is not only true but powerful, pure, peace-loving, considerate, submissive, full of mercy and good fruit, impartial and sincere” (1 Corinthians 3:19,20; James 3:17).

For the foolishness of God is wiser than human wisdom, and the weakness of God is stronger than human strength. 1 Corinthians 1:25

For the wisdom of this world is foolishness in God’s sight. As it is written: “He catches the wise in their craftiness and again, “The Lord knows that the thoughts of the wise are futile.” 1 Corinthians 3:19,20

But if you harbor bitter envy and selfish ambition in your hearts, do not boast about it or deny the truth.Such “wisdom” does not come down from heaven but is earthly, unspiritual, demonic.For where you have envy and selfish ambition, there you find disorder and every evil practice. But the wisdom that comes from heaven is first of all pure; then peace-loving, considerate, submissive, full of mercy and good fruit, impartial and sincere. James 3:15-17

God offers everything we need; we don’t need to go looking for wisdom in all the wrong places. Jesus is The Truth. You can’t find better than him.

Jesus answered, “I am the way and the truth and the life. No one comes to the Father except through me.John 14:6

Anything that is not from Jesus is not the Truth, so why would we want it?