That’s quite the lengthy post title, right? Fortunately, the answer is far more succinct:

No.

Of course, I can elaborate too. I base that no on two considerations. First, there’s no textual reason to believe that Nephi sees Columbus in the vision he recounts in 1 Ne. 13. Second, whether it refers to Columbus or not (and see point 1), it doesn’t say anything about the person being an exemplar or in any way worth of our respect, emulation, or celebration.