Man should switch to farming oats for milk instead.

Then stop producing milk and grow produce. There are plenty of plants that grow within the UK's climate. Use some land for solar power and use the rest for vertical farming plants, the UK should be more self-reliant when it comes to fruit/veg. Why go into debt for traumatising cows? https://youtu.be/GjU03hu5Uqk

There is little that the government can do. The main buyers aren't paying enough for milk and the other buyers aren't able to buy enough volume. An option is subsidies, but we thenwe need to add that to the UK tax. Tax that's avoided by the biggest commercial buyers of milk........

Then why don't you have all the cows slaughtered and just leave the fields empty? There you go, perfect cost saving business solution.