Alcohol can cause cancer if you drink it too much but if you are not drinking alcohol too much ot can be healthy for your organs inside your body.They are many proofs that alcohol is healty if you dont drink too much.So if you want drink alcohol buy it in Croatia because best alcohol is in Croatia.Croatia is 3rd im drinking alcohol in Europe.Best beers in whole world are Osječko,Karlovačko and Sokol.
Though I don't really know anything about how small amounts of alcohol can be healthy, but I agree with the first part of your statement.
I think alcohol becomes really dangerous and may cause diseases like cancer only when someone drinks too much for many years.
Of course, there might be some congenital problems with liver or kidneys, or some other deseases like HCV that degrade the work of somebody's organs...but this cases are rare I think, because people in these conditions know that they shouldn't mess up with alcohol at all.