Actually, Rev 3:21 does say that Jesus did sit down with the Father on His Throne. That makes no difference to you because you always disregard that verse.
(Rev 3:21) To him who overcomes I will grant to sit with Me in My throne, even as I also overcame and have sat down with My Father in His throne.
So stop running away from my question: Do you offer the same worship to Jesus as you do to “the One who sits on the throne”?
Scripture nowhere requires Jesus to be called “the Father” or to merge the persons in order to share the divine name. On the contrary, the New Testament explicitly applies YHWH texts, divine titles, divine functions, and divine worship to Jesus: He is called God (John 1:1; John 20:28; Titus 2:13), Lord in the YHWH sense (Phil 2:9–11 citing Isa 45:23), Alpha and Omega / First and Last (Rev 1:17; 22:13), Creator (John 1:3; Col 1:16), Judge of all (John 5:22–23), and the rightful recipient of prayer and worship. The claim that Jesus is “never called Lord God Almighty” proves nothing—titles are not checklists, and divine identity in Scripture is revealed through shared prerogatives, glory, and worship, not through wooden repetition of phrases.