What is the way to get rid of the socialist ideology of my wife and her family that is affecting the upbringing of my children?

A man is a shepherd and responsible for his household. Therefore, he must raise his children with a righteous upbringing by teaching them the Quran, the Sunnah, and virtuous morals. He must also take care of his wife's upbringing and instruct her in her religion. He should, as much as possible, keep his family away from corrupt environments and ideas.