Thoughtful post, but allow me, please, to diverge from your thoughts on a few points.
1. I see nothing attractive about a war of any kind, but most especially what I'm now calling Uncivil War 2 or UCW2. (I suspect you feel the same way).
2. Who are going to be uprooted for the separation, vaxxed or unvaxxed? I don't see either of them moving voluntarily.
3. With all their fixation on "horse paste", it's difficult to envision ivermectin being accepted by the unvaxxed as a reasonable solution - science, empirical results and meta-analysis of the many studies notwithstanding. IOW, don't confuse the enemy - yes, that's what they have solidified themselves into - with facts.
4. What I bolded - your best point with which I completely agree. But we're not the ones (generally) who feel and act that way.
5. I don't see the upcoming UCW2 as a war of conquest as much as I see it as a war of desperate survival. This will be fought in an environment of no operable grid, no food, a completely failed logistics system, horrible health/sanitation conditions, almost non-existent medical care and - even after the initial "sorting" of those who don't make it past the opening salvos - confusion identifying the enemy.
6. Your conclusion seems to assume that there will be a reasonable number of survivors on either side (or the various sides which coalesce) before a surrender or truce or things sputtering out just due to exhaustion. At this point, it's difficult to foresee UCW2 ending without a pretty-much-complete annihilation of the enemy, unless an outside solution is forced onto the survivors, a la the Bosnia/Herzegovina impasse.