The risk of illness from raw milk far outweights the benefits, but you can also add the following.
If you have raw milk and it has contamination from pathogens, then there is a very good chance that those pathogens will provided with a route from the milk to other foodstuffs, and the end result is that its actually some other food item that will make you ill as a result of the cross contamination. For example, you might not wash your hands after handling an item containing raw milk and then move on to contaminate some other foodstuff.
To all those who seem to think that eating raw delivers more ‘goodness’ or vitamins or is somehow more beneficial - well that is extremely misleading, the process of cooking will tend to make more of the content available to the human digestive system, this is also true for many other animals. Cooking denatures cell structures, and breaks them down into simpler molecular chains which are easier to digest. Yes, there can be mineral and vitamin loss, but this needn’t be all that great, and in a well resourced economy, the chances of vitamin and mineral deficiency in a properly balanced diet are zero.
If you must eat raw vegetables, the sensible way to do it is to peel and blanch it first, you still will not have as much of the food content available as if you cooked it, but you will get more of the flavour and the crunchiness. Unfortunately blanching of salad vegetables is not a practical option.
The issue with raw milk is that the presence of pathogens is not obvious, it takes time to verify and this is not a practical solution - who is going to wait to see if cultures grow ?
Our animal husbandry is very much better than the past, and as a result there is much less chance of getting contaminated raw milk, we have many preventative measures plus a far greater awareness of the condition and health of cows.
We can reasonably say that raw milk is much safer than in the past - the pre anti biotic past.
Despite this, raw milk is an uncontrolled risk, Listeria monocytogenes can and does kill up to one third of those infected, its instructive to note that the UK has an almost vanishingly small number of cases of illness from raw milk, and France - which consumes much more along with products made from raw milk, has a far greater incidence.
Anyone who takes raw milk is taking a risk, and its not even a logically quantifiable one either, because its not a simple case odd or percentages, food poisoning does not work quite that way, you can’t say the risk is one per thousand, any more sensibly than saying its one per hundred, because we are not dealing with uniform quantities. All we can say is that the more raw milk you take, the more likely you will be to become ill, some will be more unlucky than others and be ill lots of times, others will only be ill once and possibly die, yet others will show no symptoms and will themselves become a source of illness for others.
The severity of illness associated with raw milk, compared to the illusory benefits are so great that anyone knowing and understanding such risks would be a complete idiot do take raw milk.
Its almost as if there is a perverse reaction against generations of microbial research, these things we know, we can control the risks by pasteurisation and yet other idiots mislead the ignorant idiots into making dcisions they do not understand and which may be hazardous.
Basicly, if you like danger, I suggest that you are much more likely to get an adrenalin rush from jumping out of a perfectly good aeroplane with a parachute on, but to drink raw milk - well that’s just stupid.