Another good example of the spin you put on history? Arthur White, in his biography of EGW, volume 1 pages 121 and 122 said that EGW was rebaptized due to her acceptance of the 7th day Sabbath/third angel's message, not because she was converted to Arianism. There doesn't seem to be any stated reason why she was rebaptized.
Soon after accepting the Sabbath truth, Ellen White requested rebaptism—undoubtedly into the third angel's message. James White writes of this in Life Incidents, page 273, in connection with his presentation of Ellen White's visions:
Froom says MOD, p. 73 :
Then in the 1860's and 1870's a few began to put into print their personal,
minority Arian views on Christ, and denied the Trinity and the personality
of the Holy Spirit. This caused increasing misunderstanding and criticism,
both outside and inside the Adventist Church. Amazingly, the Spirit of
Prophecy was kept from being influenced by the positions of this vocal minority
of strong minds. ?And remarkably, Ellen White's published utterances from
1846 to 1888 never needed revision, repudiation of position, or withdrawal
on these points. ?These early enunciations of truth were developed with amazing
fullness following 1888, with continuity of harmony.
Froom says that EGW did not express Arian sentiments in her early writings. That should be easy to disprove, if you have evidence to the contrary, i.e., produce proof that EGW was involved in Arianism as evinced by any of her writings.