Yes it's perfectly clear to anyone who reads what is written without an agenda.
It's a valid interpretation. Have you noticed the ancients have a way of not being absolutely definitive? Do you wonder why? You should see how many times truly is written in scriptures and very truly if you wish to see when the ancients truly are very truly.
Abraham is primarily addressing Yehowah as you would expect. Nothing to do with addressing all 3 as singular. More made up Christian shoehorning.
So some Christians use it as a validation, do they? You've noticed that without having to insert toothpicks between your eyelids to keep your eyes open long enough?
There is absolutely no reason to equate this event or other appearances of Yehowah in the OT with the Trinity doctrine or Jesus as a pre-existing Yehowah.
Well, don't use it as a reason to equate it with the trinity doctrine if you so wish. That's your perogative.
Initially bits of OT were plucked out to support Jesus as the Messiah or as in the case of John, an attempt to emphasise the divinity of Jesus against those who did not have that view.
Yes. You have noticed that. You have noticed the validation. You think your validation invalidates it. That is you just thinking you invalidate it.
Only much later did the backroom boys come up with the idea of inserting Jesus into the Triune Creator belief and inventing the Trinity doctrine.
It's pure Christian manipulation to support their one upmanship "Our founder is not just bigger than your founder ... he's God. "One of the two most heinous claims foisted on the World by the "Christianity" that came out victorious from all the different streams left after Jesus' departure.
What credentials do you have to be such an authority on the matter?
