Anyone is Christ belongs to Jesus and has eternal life, not dependent on works or baptism or church membership or affiliation or any such thing.
I could never darken the door of a church again for the rest of my life and I’d still be a redeemed child God, secure in Him for eternity.
My faith is in Him and Him alone.
ICor. 12:13 For by one Spirit we were all baptized into one body-whether Jews or Greeks, whether slaves or free-and have all been made to drink into one Spirit. (14)For in fact the body is not one member but many.
One way the RCC tries to control people is through their belief in sacramentalism. The RCC claims it's clergy are given special powers to confer Grace into the individual, baptism and the Lord's Supper being the best examples. Any reader of Scripture immediately sees that this claim is contrary to passages of Scripture such as the one I already noted. However, most people don't read Scripture and are drawn to institutions with a long history figuring if something has been around for a long time it must be good, especially if it claims to be good.
They will never accept or understand being saved by Grace Alone through Faith Alone in Christ Alone as long as they think their church has some special power to save.