Do Seventh-day Adventists reject the only-begotten Son of God?

"The father-son image cannot be literally applied to the divine Father-Son relationship within the Godhead. The Son is not the natural, literal Son of the Father. A natural child has a beginning, while within the Godhead the Son is eternal. The term “Son” is used metaphorically when applied to the Godhead." - A Question of Sonship, Ángel Manuel Rodríguez, Seventh-day Adventist Biblical Research Institute

For more info about the dangers of Seventh-day Adventism:

The Mystery of Creation: The trinity, angels, unfallen worlds, aliens
https://www.youtube.com/watch?v=T-Hgk-3TwVw&t=12s

The Hidden Hand of Seventh-day Adventism
https://www.youtube.com/watch?v=vxwMXbdLxOM&t=6s

Dr Allen Davis: Leaving Adventism w/ Robert Motsinger
https://www.youtube.com/watch?v=RtIi8Fyq2Lw&t=5s