No sir, the SDA cult is, well a cult formed out of the Millerite movement just as its sister cult, the Jehovah’s Witnesses.
The SDAs have too many glaring errors - besides the belief that “Jesus returned in 1844” - but if I stick to their historical errors rather than the numerour Biblical ones, it is that - that they claim the date of 1844 when there isn’t anything discernible that happened then.
Both the pre-tribulation rapture and the Seventh Day Adventist / Jehovah’s Witnesses and the Mormons all arose in the 1800s - all three biblically false doctrines that are also historically inaccurate
The pre trib Eschatology came long before Miller as you noted previously.
I can’t think of many times I have argued Eschatology with non Christians. I also can’t think of how believing Pre, Post or Amillennialism effects me day to day or with trying to lead someone to Christ.
You are welcome to believe what you want, we will find out the truth soon enough.