Automation that replaces the need for work can be a good thing, but only if it is used to ease the overall burden instead of making a bunch of people unemployed so that the capitalists who own the company can increase their profits. The idea of machines doing all the work sounds great, but if that means that the handful of people who own the machines have a great quality of life and everyone else suffers then that is not a good trade-off.
Unless you’re a raw milk TB-chaser type the milk you drink is probably processed too. Being processed doesn’t make something inherently worse, and “no nutritional value” is a daft claim. OK if you consume milk as your only source of protein or fat, you probably want to choose your milk substitute tailored to whichever the rest of your diet is deficient in, but better or worse for us is a fairly arbitrary concept.
Livestock for dairy production are unarguably bad for the planet though.