I know; I never said you were. Based on what you had stated, I was explaining why it is necessary to believe in the deity of Christ, which then leads to the Trinity.
The deity of Christ expose the falsehood of other pagan beliefs and leads believers into enternal life, not Trinity doctrine in a trinity church along with a trinity view.
For those who lack in-depth study or haven't put much thought into it, sure. But, only the Trinitarian view of God shows that God is love, as John states. If God isn't love, then not only cannot he not be the God of the Bible, but then there wouldn't be salvation either, nor an advocate between God and man, nor one who could help us as we pray. It also shows us just how sinful sin is, so much so that God had to send his only Son to redeem us. It shows us many things.
God's love is expressed through men, first through Jesus, then his people. If you've never experienced love, you won't know what love is, and you'd never love anybody. That's why love must be experienced, not studied. Love cannot be encapsulated and taught in a seminary school or an ivory tower.
And, no, we're not all children of God:
Who're qualified as "we"? Where exactly in these verses says only trinitarians are true believers while all other people with other labels are false?
This, again, completely misses just how important this issue is. Either God is Unitarian or Trinitarian (or something else), but he cannot be both (or all) of those. To get that wrong is to believe in another god.
You're the one who completely dismisses the issue of identity politics with no idea of its dire consequences. From your first post in this thread you dove right in with these labels, that's why I called you out. Such divisiveness over doctrines is nothing new, Paul recognized it and specifically addressed it at the beginning of his letters to the Corinthian church, he never shied away from it and hid behind a theological facade like you do, he didn't pretend "there's no identity politics problem", so forgive me for following his example.
Now I plead with you, brethren, by the name of our Lord Jesus Christ, that you all speak the same thing, and
that there be no divisions among you, but
that you be perfectly joined together in the same mind and in the same judgment. For it has been declared to me concerning you, my brethren, by those of Chloe’s
household, that there are contentions among you. Now I say this, that each of you says, “I am of Paul,” or “I am of Apollos,” or “I am of Cephas,” or “I am of Christ.” Is Christ divided? Was Paul crucified for you? Or were you baptized in the name of Paul? (1 Cor. 1:10-13)
Where
there are envy, strife, and divisions among you, are you not carnal and behaving like
mere men? For when one says, “I am of Paul,” and another, “I
am of Apollos,” are you not carnal? Who then is Paul, and who
is Apollos, but ministers through whom you believed, as the Lord gave to each one? (1 Cor. 3:3-5)