Diverging coauthor opinions - publish anonymously or don't publish at all? This question is a splinter of an earlier question, posted separately upon advice from commenters. 

The background is:

(1) I audited a course at an institute I don't belong to. As part of the course, an essay is being written by two of us. 

(2) There is a chance that this essay would be published either internally or externally (not necessarily peer-reviewed).

The problem:

My co-author and I differ (significantly) on certain areas we write about. In a sense, we represent opposite ends of the spectrum. My partner is keen to publish; I am ambivalent. 

I'm bothered by questions of academic integrity, namely:

(1) Do I withdraw entirely, allowing a one-sided, uncontested opinion to be expressed? This is the easiest option.

(2) Do we submit normally, with our names and affiliations, knowing that some opinions expressed are contrary to my  own views, and may negatively impact my academic work at a later stage? While uncomfortable, this does seem fair.

(3) Do I remain anonymous, with the partner being the first author? This way we can address the divergence and bring out a contrast in perspectives, without me having to worry about long-term consequences. But I don't know if it is an accepted practice. I have come across questions on anonymity here and here, but these primarily discuss single-author work.
Rather than knowing that some opinions expressed are contrary to my own views, you could present both views and clearly label them as such. For instance, you could open by explaining:

The authors opinions differ significantly and each author presents their own opinion below:

Followed by each opinion:

Author Name A: ...
Author Name B: ...