There’s millions of JWs, Mormons, Unitarians, Muslims, and Jews who would disagree with you.
And how many of those above groups have to add additional books to, or edit current books, in order to make their case?
Clarity in Scripture regarding the Trinity is, well, a very, very tenuous position to be sure!
(quotes in direct relation to the Arian debate)
Augustine (354-430): What does “homoousios” mean, I ask, but The Father and I are one (Jn. 10:30)? I should not, however, introduce the Council of Nicea to prejudice the case in my favor, nor should you introduce the Council of Ariminum that way. I am not bound by the authority of Ariminum, and you are not bound by that of Nicea. By the authority of the scriptures that are not the property of anyone, but the common witness for both of us, let position do battle with position, case with case, reason with reason. See WSA, Answer to Maximinus, Part I, Vol. 18, ed. John Rotelle, O.S.A., trans. Roland J. Teske, S.J. (New York: New City Press, 1995), p. 282.
Athanasius (297-373): Since, therefore, such an attempt is futile madness, nay, more than madness!, let no one ask such questions any more, or else let him learn only that which is in the Scriptures. For the illustrations they contain which bear upon this subject are
sufficient and suitable. C. R. B. Shapland, trans., The Letters of Athanasius Concerning the Holy Spirit, Ad Serapion 1.19 (New York: The Philosophical Library, 1951), p. 108. Greek text: Περιττῆς τοιγαροῦν καὶ πλέον μανίας οὔσης τῆς τοιαύτης ἐπιχειρήσεως, μηκέτι τοιαῦτά τις ἐρω τάτω, ἢ μόνον τὰ ἐν ταῖς Γραφαῖς μανθανέτω. Αὐτάρκη γὰρ καὶ ἱκανὰ τὰ ἐν ταύταις κείμενα περὶ τούτου παραδείγματα. Ad Serapionem 1.19, PG 26:573.