Most everything can get tuberculosis. Which is why livestock has been tested for it relentlessly in the US since the test was invented, decades ago. You are more likely to get it from the rat raiding your feed than from a goat or cow - and you can have the goat or cow tested, and they've likely been vaccinated against it.
Your dog, btw, can also get it, and likely has not been vaccinated for it. But it's just that rare to come across.
https://www.news-medical.net/health/Tuberculosis-in-Animals.aspx#:~:text=The spread of cattle tuberculosis,otters, seals, hares etc.
Dairy animals are a LOT of work. Their diet has to be far more precise, if you have dairy bred animals, you MUST milk them twice a day, religiously.
NO, they won't just give less milk if you feed them less and leave the kids on them, they will get mastitis or all manner of other nasty things and die.
If you want low-care animals, don't get any animal of a dairy breed. You can milk a "scrub" (goat of no particular breed who's ancestors have been kept for pets, meat and weed control) or meat breed doe. You won't get as much as from a dairy doe, but then you can leave the kids with her and skip a day, and separate them overnight when you want milk.
The OP is in Florida, where worm blooms are a year-round problem and can get
very bad, very fast. When I lived in FL, I had to do it all the time. Now I live on a mountain top waaay -up north and do it 2x a year. When I lived 50 miles away, but on much wetter ground, every 6 weeks in the summer and 8 weeks from frost to frost. It is VERY location dependent.
It is also not at all hard. Goats have "berries" like rabbits have "pellets". Pick up 2 per goat, toss them in a vial of sugar water, shake heck out of it, let it sit. Later on that day, take an eyedropper, put a drop from the surface onto a slide, count eggs. Done.