YHWH is singular and many scriptures even the ones changed to not contradict the christian invention refer to the singular. When you rewrite the Masoretic text to meet your own requirements, you didn't prove something, You lied.
Genesis 6:1-4 Masoretic Text 1 And it came to pass, when men began to multiply on the face of the earth, and daughters were born unto them,
2 that the sons of God saw the daughters of men that they were fair; and they took them wives, whomsoever they chose.
3 And the LORD said: 'My spirit shall not abide in man for ever, for that he also is flesh; therefore shall his days be a hundred and twenty years.'
4 The Nephilim were in the earth in those days, and also after that, when the sons of God came in unto the daughters of men, and they bore children to them; the same were the mighty men that were of old, the men of renown.
Isaiah 9:6 talks of a "Son" who will be called might God, wonderful counselor, and Prince of Peace
Genesis 32 talks of Jacobs literal struggle with God. Since we cannot be in Gods presence, it has to be through his son, his triune manifestation.
Genesis 18 talks of Abraham being visited by 3 strangers, and one of them definitely being God.
In the story of Shadrach, Meshach, And Abednego, when they are thrown into the furnace, a fourth man is in there with them. He had the appearance like a son of God.
During Daniels visions, he talks of a Son of Man. Daniel chapter 7. Jesus on many occasions refers to himself as the Son of Man in the New testament. Daniel says that the Son of Man will authority and glor and sovereign power over all the peoples.