The point you make can't be repeated enough!
Reviewing this prophesy and it's fulfillment in Jesus Christ is a great example of why sola Scriptura is so important. If we look, all the answers we need to know are in Scripture. The statement had been made there was no proof that Jesus was the Messiah. The time line from the prophesy in Daniel fits Jesus' ministry and crucifixion. We have no one else on Earth at that time who made the claims Jesus did nor rose from the dead and later ascended into heaven.
I've always thought that this prophesy is the most powerful in the OT referencing the Messiah.
Strange how the RCCers go silent when confronted with irrefutable Scripture.
I'm still awaiting an answer to my "praying to dead people" post.