Troops are also skilled trades and not easily replaced. This situation could last for months. What effect would diverting thousands of troops have on preparedness? What would widespread infections do for preparedness. Longer term, how would misusing troops affect recruitment?
I’m not saying meat processing doesn’t involve skill. I realize that there are several skills involving meat cutting. But there are also lots of low skilled jobs involved that workers could pick up without too much effort.
And as far as troops go, number one, I wouldn’t expect them to have to be at this for too long a period. And number two, at least they know how to follow orders and follow good hygiene practices. And unless you’re living in a sealed box with no contact with your average government educated or uneducated person, you know how sloppy work ethics have become over the last few decades. Why else do they have to put signs in restrooms, reminding food workers they must wash their hands after using the toilet? If you think they all actually obey that sign, you’d be wrong.