On a philosophical level, I struggle with whether atheism is actually a "thing".
In Romans 1, Paul wrote that all of mankind, to one degree or another, is aware of God's existence. He also wrote that those who suppress that knowledge have no excuse. So Scripture would appear to say that there are no actual atheists. Also, Psalms 14 & 53 (if I'm interpreting them correctly) assert that anyone who denies God's existence is a fool.
Perhaps I'm wrong, but I tend to view agnosticism and atheism on a continuum. Agnostics, for the most part, aren't sure if God exists, but they can't quite bring themselves to seek Him out, at least not in the short term. Atheists, on the other hand, have pretty much convinced themselves that God does not exist. And they "seem" to live their lives as if that's the case.
Sye Bruggencate is a pre-suppositional apologist. Presuppositional apologetics takes the approach of arguing for God's existence and the truth of Scripture based on His existence. Sye believes that when Christians try to make an argument for God's existence to non-believers, they (Christians) are basically setting themselves up as "judges of God" and "putting Him on trial".
I've watched a couple of videos from Mike Winger in which he attempted to answer Sye's arguments. Mike's take is that you can't use the fact of God's existence to try to prove His existence.
Personally, I'm not sure if I could be considered a presuppostional person or not. I mean, I know God exists and I know Scripture is true. However, if I try to convince a nonbeliever that he or she needs Christ as Savior, I would already have the upper hand in the discussion because I am a believer and I hold Christianity as true.
I suppose that I could use the example of J. Warner Wallace. He is a LAPD cold-case detective who was an atheist for a long time. JWW became a Christian and he uses his detective skills and reasoning to prove Christianity as true. Wallace didn't rely on the Scriptures alone to convince him that God is real and that he needed a Savior. Wallace's most recent book is titled "Person of Interest", which goes into great detail about Jesus and how & why accounts of His life on earth are true. I would assume that Wallace is NOT a presuppositional apologist.
This is one of those "thorny" areas where theology and philosophy as a whole run into each other. I can't remember who said it, but theology is actually a branch or sub-category of philosophy. We as Christians know without a doubt that God exists and that Scripture is true. That's why I understand where Sye is coming from. At the same time, I understand where other Christian philosophers are coming from, because they are trying to make the case for God by making Him the "endpoint". That is, such philosophers say that the natural world is not random and that some intelligent mind had to cause/create it. Then, they narrow down that intelligent mind to God and say that He is the One who brought the world into existence. As Tim Stratton says, "everything that begins to exist has a cause". Tim is a Christian, but he doesn't start with God's existence and go backward, he starts with the natural world and works forward to God.
I know this is long-winded but I hope I helped to answer the OP's question.