This is a distortion of the actual research quoted, which didn't mention the UK at all. It is tabloid scaremongering. The situation is serious - pandemics are. But please don't get your information from a free tabloid trying to produce clickbate if you want to retain your sanity.
We locked down at exactly the same point as Italy did. It came later because, although our first diagnosis was only 24 hours after theirs, we didn't have any associated mortality until about 2 weeks after them. The government has been very clear from the beginning that they will base their decisions on the science. Their daily briefings involve a medical representative and a scientist every day. They have said very openly that they are not clairvoyant but they will do their best based on what they know and are constantly updating their plans as their knowledge grows.
I think you have to take stats with a pinch of salt at this stage. They won't be truly useful until we are out the other side. However, if you do want to look at current stats, you will find that the mortality in the UK in relation to our population size, is not in a bad place compared with Italy, Spain or France. It is worth remembering though that the mortality rate is not dictated by policy or healthcare, but by the ability of people who get the virus to survive it. As such, a high mortality rate like you see in Lombardy is not the result of poor medical care - quite the reverse. It is because they have excellent medical care which allows many people to live long lives despite having serious health conditions.