No. It's not.
I like Dr. Fuhrman's equation: H=N/C. This equation expresses the concept that your health (H) is predicted by your nutrient intake (N) divided by your calorie intake (C). There's not a lot of nutrients in meat (all you get really is protein and iron), whereas in vegetables/fruits you get a whole vast assortment of proteins, vitamins, fiber, phytochemicals, antioxidants, etc.
Meat also has the problem of being a carcinogen, per the WHO [0].
> I have heard milk referred to as a superfood quite a bit.
Nope. It's not.
Milk has a ton of sugar, lactose is not well-tolerated by something like 80% of the population, and the proteins in milk are potentially carcinogenic. [1] Anyway, and that's just the nutrition angle - not even getting into the horrific ethics problems and environmental problems. We need to move away from meat. We can do better.
0. https://www.who.int/features/qa/cancer-red-meat/en/
1. https://nutritionstudies.org/provocations-casein-carcinogen-...