Have not older religions spoken of gods with sons on earth?

The Catholic Answers

Some of them have made uncertain and vague claims, but none has made any precise claim in the full sense in which Christianity declares Christ to have been the Son of God. Nor is there a shred of evidence to show the reality of their claims, vague as they are.

Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty