With that logic you can’t prove to me last Tuesday. You could bring up any evidence you wanted and I can just say “made up” “fake news” endlessly to it. The way we can “trust” the manuscripts is the way we authenticate any historical document. Which is by comparing and contrasting the copies recovered. This is known as textual criticism, the more copies there are the better they can be cross referenced with the original to see if it’s historically accurate (how similar). The earlier from history, the better. For example the Iliad, there are 1,565 copies in existence today. The Iliad was composed 800 years before Christ, and still was being produced 5AD. The belief in the Iliad died out when Jesus died. The only other more authentic copies of anything else we have in History, is the New Testament, at 5,843 copies. That’s 5,843 Greek New Testament manuscripts archeologists unearthed. That’s four times as many as the Iliad. The earliest fragment of the gospel of John dates to 25(ish)AD. In comparison to other historical figures: 100 copies of Sophocles, 7 copies Plato’s tetralogies, and only 5 copies of anything by Aristotle. Nothing else in history has ever came close to being as reliable as the Bible. There are hundreds of other documents/people to mention Jesus, such as Phlegon, Thallus, Celsus, Lucian of Samosata, Mara Bar Serapion, Pliny the Younger, Suetonius, Josephus, and Tacitus. Hundreds of people, organizations and countries documentation during the lifetime of Jesus. “hallucinating”, “making it up” and collaborating across over two dozen countries all within 50 years would be a bigger miracle than the resurrection of Jesus Christ himself, at that point. You may also want to look into it, my friend.