You are asking him to disprove a negative, which is impossible because you are not proceeding with an open mind.
That’s a logical fallacy of the first order.
Discuss the issues all you want, but do not make it personal.
John 1:1 In the beginning was the Word, and the Word was with God, and the Word was God...14 The Word became a human being and lived with us, and we saw his Sh'khinah, the Sh'khinah of the Father's only Son, full of grace and truth
Gen 1:1 בראשׁיתH7225 In the beginning בראH1254 created אלהיםH430 God אתH853 השׁמיםH8064 the heaven ואתH853 הארץ׃H776 and the earth.
"In the beginning Elohiym 'Alef-Tav' created the heavens and the earth."
Hmmm, a 'Word' that has never been translated? A 'Word' that appears over 600 times in connection to all commandments, all covenants & all prophecy about the Messiah