There is such a man:

He was born in the coastal region of mainland China but emigrated overseas.
He greatly promoted the crypto ecosystem and applications,
He started from scratch and became a crypto billionaire who was once accused by the United States of money laundering,
He was punished by the United States and had a lot of money taken away,
He received protection from the highest decision-making level of his country,
He is no older than 50 years old,
His name is abbreviated as CZ.
I believe the clever you already know who this man is.
That's right, he is: Chen Zhi of the Prince Group in Cambodia.