I have enough life experience to know that no church is perfect. I just happen to agree with Adventist teachings more often than with the teachings of any other church.
Please read Jeremiah 32:35-44. Even as God chastised His chosen people under the Old Covenant for sacrificing their children to Moloch, He promised ultimately to bless them.
The 7th Day Adventist Church may still be God's remnant church for the end times, even if, for the time being, it has temporarily lost its way.