Despite the growing societal disdain for “evangelicals” as a loosely identified political class in America, evangelism (which, by default, is practiced by evangelicals) is a thing. A believer embraces the evangel, the good news, the gospel. To the one who believes, it is the power of God for salvation (Romans 1:16), by which we are saved, if we hold fast to it (1 Corinthians 15:2), a truth embedded in the Scriptures which gives eternal life to those who come in truth (John 5:39-40).
Basically, centuries of lip-serviced, watered-down exposure to the Bible does not mean that the people of those generations were spiritually alive, biblically engaged, or even necessarily biblically literate. In fact, there is even grounds for applying the theory of the frog and the boiling water. Years and years of syncretism and neglect heating up in a presumably “Bible friendly” environment has resulted in much of modern evangelicalism being caught in a scalding hot pot of decisionism, false teaching and apostasy.