[Speaking of your post specifically now and unrelated to the OP topic]
What if you were born somewhere where people haven't even heard of Jesus, or did not have any real exposure to the Gospel? It's easy for the Western evangelicals to speak like that from the comfort of the first world. I say "first world" in the sense of availability and common cultural knowledge of the Gospel. I love watching Jewish testimonies; a lot of Jewish converts say, per example, that they didn't even have any idea that Jesus was Jewish, or that He was all about Israel, or what happened in the New Testament. They were forbidden to read it, taught as kids that it's dangerous, that it would corrupt them. Some were just
lucky blessed to make friends with a believer who patiently explained it to them and intrigued them to finally pick the book up. Did you know that many of them, even living in Western society, used to think Jesus was some Italian and were completely ignorant? How can some evangelicals judge a person like this with such harshness and readily claim they will go to hell, some with an arrogant certainty even?
Billy's not going over God's Word. By saying "true, to an extent" I think he's pointing at the understandings of some modern evangelicals going over God's Word. They seem obsessed with dogma and debating belief systems, but early Christianity was called simply "the Way". It was meant to be a way of life, a spiritual discipline expounded in the Scriptures, not a religion. It took centuries until the full fledged "Christianity" religion was formed and the full Scriptures compiled. I prefer just "the Way"! Not lofty theology, but Beatitudes and other words from His mouth put in practice. Many understand
"the only way "to mean,
"the religion of Christianity and its theological dogmas [in our definition, of course] is the only way to be saved". But Jesus refers to
Himself as the Way in the Word, not to some religious system or dogma, which was created a long time after He ascended. There's no other Way to enter Heaven, except following Jesus and conforming to His image. Whether the person had a cognitive introduction to Jesus or not. Because no one can seek these things or practice these things without the Spirit's help.
The Bible prohibits us from declaring who will go up or down (Rom 10). It does tell us the characteristics of people who will or will not inherit the Kingdom, and this is taught for our edification, and is insufficient knowledge for us to pass final judgments over other peoples' souls.