Yep it’s real, will very much blow your mind once you realize it. Unfortunately there’s not any sure fire arguments because arguing is never how anyone became Christian. Just like how Jesus didn’t come to give out infinite knowledge or supreme logic, but to bring about atonement and spiritual rebirth, the means of implementing Christianity isn’t a matter of knowledge so much as a matter of being spiritually unmade. But yeah it’s real and for what it’s worth the missing link for me that really filled everything in after I became Christian was understanding what exactly the Holy Spirit was and what it does to you. But there’s no way to fully appreciate what that means it without having it happen. Almost like you have a spiritual organ that you’re born with but isn’t being used until it is finally activated but it’s only activated by this specific outside force that is bigger than you in ways beyond just size, and also happens to have a mind, will, emotions, an entire person that is infinite yet somehow also very specific and knowable. Many people are running around with a dead spirit organ and only spiritual rebirth can give them an active one, this starts with joining Christ in death (which frees you from the inheritance of Adam) allowing the rebirth into the lineage of Christ to be possible. This also happens to be the only eternal lineage, hence everlasting life. So Christianity is fundamentally about joining an entirely new family lineage in order to get a new inheritance, eternal life instead of eternal death, in a very literal sense, and currently both of these “bloodlines” happen to share the earth at the same time, and people are constantly being reborn every day (the Kingdom of God has never lost any numbers).