It isn't about the death rate..... yet, but it could be soon. You see once the beds in ICU fill up and they can't take any more the death rate could hit as high as 18%. Thats the amount of people that would need ventilators and even more serious equipment. This is what happened in Wuhan, China and is currently happening in Northern Italy.

Think of it like a snowball rolling down a hill. Once it gathers size it will smash its way through the population.

China was able to throw the weight of a massive nation behind the efforts to treat the sick and cut it off in one region. What does Britain have? One of the lowest amounts of ICU beds per % of the population in Europe. Look at the crappy tents they are erecting in car parks.