Do you think Christ established our churches to teach us about the Kingdom of God and does not want to teach anything about the kingdom of the world?
When Nebuchadnezzarii (ruler of ancient Babylonia) conquerored Judah to send Jews to Babylon to live as prisoners, they lived in a land very like our land today. The people looked to the stars and idols to quide them, as people do today. Instead of metal and stone idols, they use man made rules in self help books and psyciatry. Every newspaper today gives an article about what the stars say about people's star sign.
Gradually, the Jews accepted the ways of the pagans they lived among, as the Christians of today are accepting the pagan ways of the pagans we live among.