I do not feel comfortable calling Baptists and most evangelical types Christian because most of them do not believe in Theosis. Most seem to believe man decides who is saved instead of God. Very disturbing.
Welcome to CF.
One of the things I do is to meet with people who visit the Church during our yearly festival, and some have questions about what we believe and how it compares to their beliefs. Baptists/evangelicals are a large portion of the population here.
If you tell them we believe that we become like God by participating in the divine nature, they will recoil, assuming we believe that we assume God's very Essence and "become God". Of course we don't believe that either!
But if you explain that we believe that we cooperate with the grace of God, and by our actions, thoughts, and so on are transformed to be more and more like Christ, and that ultimately by the time we reach the stage of the life to come, God transforms us to be completely in Christ's likeness, and that we will be in perfect communion with God for eternity and that IS salvation - most agree wholeheartedly. The major difference in what they mostly believe is that most tend to think that even if we ourselves fall short, God will certainly and automatically complete the process. (And who knows - for very many I hope He will!)
So really, they do believe ultimately that God is more in charge of the process than us. Most of them do believe we must choose God, but then so do we, as we do not believe God merely selects some and rejects others and forces us into that path regardless of our own hearts as some Protestants believe.
They do not share our beliefs perfectly of course, but theosis is not really the biggest hurdle. The intercession of the Saints and that we honor them is easily misunderstood by many to be "worshipping" the Saints, because of anti-Catholic rhetoric they've been taught. In reality, many of them DO accept unofficially that their pious loved ones are in heaven and concerned about their lives, maybe "watching over them" and they might even ask Grandma to speak to Jesus for them - very unofficially and they wouldn't call this a "prayer" because for them prayer often equals worship, not simply asking.
The words we use tend to be bigger stumbling blocks than actual beliefs. And actual beliefs tend to vary a LOT so that it's hard to completely pin some groups down. Evangelicals are of such a recent innovation that they vary quite a bit, and Baptists vary quite a bit such that there are many labels for what kind of Baptist they are, and even then they may not find a congregation they perfectly agree with.
