Basically the core of the issue is that the UK govermnent yearly expenditures on various facilities like 'Diamond source' synchrotron, payment for the CERN membership etc are higher due to inflation, exchange rates, electricity costs, and the STFC/UKRI's answer to this is to cut the grants for researchers by 30%. A particularly idiotic solution given that many people from US are looking for other places. Also what's the point of having facilities without people to use them.