Fail again DU. The only way is for you to use your perverted 'definition' of the Trinity.
Declaring a religion to be polytheistic because it interprets a scripture differently than yours, and disallowing them from saying the same about yours is well, a double standard.
There is 'interpreting' and there is blatant misrepresentation. When the "interpretation' doesn't match the underlying Greek/Hebrew is intellectually dishonest. And were it just interpreting a scripture passage - but this isn't just about that, but the open preaching and teaching of your religion. That adds a whole new component.
AFA 'disallowing' one to say the same - it is a function of the dishonest mormon representation. But then your 'scholarship' is still too thin to understand theos and theotes are singular and represent a singular God - not a committee of multiple gods.
The definition of "ONE" as used int eh Bible has been amply presented here, and never addressed by your side.......
Put up or shut up, time, prove it to me.
Joh 10:30* I and my Father are one.
Joh 8:58* Jesus said unto them, Verily, verily, I say unto you, Before Abraham was, I am.
Col 2:9* For in him dwelleth all the fulness of the Godhead bodily.
John 1:1* ¶ In the beginning was the Word, and the Word was with God, and the Word was God.
Guess you are going to have to eat crow and not turkey then DU.