No Dizerner. Rather billions of persons across history and geography share my view... starting with the Jews
Go and ask any Jew if he agrees with One God = One Person.
Then study all polytheistic religions. One god = One person. That's exactly why you were skeptical about the Greek housewife pretending to worship a single Being.
Having said that, Buddhists, Jainists, Confucianists, Taoists, and Pantheists in general could agree with you: One God does not equal One Person.
I encourage you, finally to examine carefully your own spiritual life, your own relationship with God.
Despite of what you declare in an Internet Forum, you love, trust and obey God as if he were One Single Mind.