Who told you that. I read a lot about SDA in Bible School, and I never found anything like that. In fact, they do teach about Jesus, and I couldn’t find anything about them diminishing Jesus anywhere in their prepared statements.
Maybe one of their churches taught that .. but it’s not anywhere in the founding documents.
So, I don’t know where you got your information .. but maybe you better do some more research .. because it appears to be way to far off target to be real.
And, I still do not believe SDA is a cult. In order to define it as a cult, there are many, many criteria that the SDA does not do .. so therefore, they cannot be classified as a “cult”.
People who have studied and written about cults disagree with your opinion. SDA is a cult.