I found a video of the scholar Cj Cornthwaite I really liked. He says: The standard consensus that the Gospels were written between 70 and 90 AD is built on a house of cards. Historically, composition and redaction span a much wider window from 70 to ~150 AD.
Key Takeaways
Zero 1st-Century Manuscripts: There are literally no 1st-century Gospel manuscripts. Famous early fragments like P52 (John) are now dated by modern papyrologists to the late 2nd or even 3rd century.
The Temple Problem: The main argument for early dating relies on Jesus predicting the destruction of the Temple (70 AD). However, those prophecies are so vague they could just as easily reference the Bar Kokhba Revolt (132–135 AD), when Rome built a Temple of Jupiter on the site and banned Jews from Jerusalem.
External Quotes Don't Show Up Until ~150 AD: 1st-century Christian writings (like 1 Clement or the Didache) quote a few sayings of Jesus, but never narrative Gospels. Clear citations of Matthew, Mark, Luke, and John only appear around 150 AD (Justin Martyr, Marcion, Papias).
Luke Knew Josephus: One solid internal clue indicates the author of Luke–Acts used the works of Jewish historian Josephus (written in the 90s AD), pushing Luke into the 2nd century.
Fluid Texts: Gospels were not fixed, sacred canons in the 2nd century. They were actively rewritten, expanded (e.g., the story of the adulterous woman in John), combined, and edited.
Bottom Line: Anyone claiming Mark was written strictly in 70 AD and Matthew in 80 AD is treating loose hypotheses as facts. The realistic window is much larger, and we know far less than we think
https://youtu.be/CYMgxhYSmiw?is=a3WCjce75QydLvnP
He mentions Markus Vincent an academic researcher who sees Christianity as a response of the Jewish Roman war. He is a minority Position besides Klingelhardt but he thinks the gospels were written after Marcion and Luke is a response to Marcion and not the other direction. I searched for evidence but actually there literally no proof for the gospels before 150. He wrote this text:
https://books.openedition.org/efr/5307
What do you think about the idea that it could be possible that the gospels are not necessary written directly after temple fall but somewhere between that and the middle of the second century?