If I wanted to butcher any of them myself for my personal use, would the meat be safe?
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Yes you can butcher. The abscess if you see them internally will be on the lymph system and not touching parts of meat unless they are coming through to the outside, in which case simply cut around them without puncturing them. Wear gloves, since the disease is zoonic, meaning to all mammals including us, although we haven't really heard of cases in people, at one point trying to find it in human literature.
It isn't about profit. At sometime in your homesteading life you will have livestock to sell, you can't eat them all, you have to sell the rest (only funny to Texas folks who eat Bluebell Icecream

With clean stock you could help someone else on this board get a nice milker or two.
I am also sorry about all this. It is much less risky to eat animals with problems like this, but to milk them? That creeps me out! Sorry.
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To us who are new, it's overwhelming.
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Yep I remember my first goat meeting. They where all talking this alphabet soup of CAE, CL, DHIR and I just wanted to learn how to trim feet!

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Can you help me understand why giving up the immunities available in the colostrum outweighs the CL risk in nursing?
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I don't feel heat treating colostrum ruins anything. If this where true the average age of my does kidding and milking and living very healthy lives would not be 12. In fact I think a bottle fed kid gets more and better quality colostrum, because you see how much it drinks and who it comes from. It certainly retains the immunites we need to have this long lived healthy stock.
I will never stop heat treating and pastuising my goatlings milk. It's the stuff you can't test for that keeps me testing, not CL or CAE. The difference in udder texture, longevity with real quality of life, minus the swollen knees that I doubt seriously was all from CAE, is enough of a difference in the lives of my goats for me to continue. It is 12 weeks of work, for the lifetime of the goat? Add the tameness issue, and to me thats a nobrainer.
Even when I ran boers I took all doe kids (replacements) away from their dams and raised them with the dairy kids. This gave me a core herd that was tame, then I let the kids nurse so they where sold the wild heathens folks expected

Vicki