You're being dishonest.

Let's say I agreed with you.
So what?
And I ask that sincerely - tell me why I or anyone else should care about being dishonest.

My views and opinions are heavily supported by reality and logic.

And how do you know you are correctly perceiving reality?
^^ At least the 8th time I've asked that question.

the gospel according to Mark was written by someone who KNEW that Jesus was real?

Because the contrary is impossible.
How do you know the Gospel of Mark is a thing that exists?

how do you know the prophet Muhammad was having REAL visions and conversations with God?

He wasn't. He was delusional and/or in conversation with one or more evil spirits.

Nazareth did not exist before the 2nd century C.E.

According to the most reliable historical records, that is false.