The Telegraph's current stance is to push as hard as it can for the rapid end to lockdown. They pick their 'experts' accordingly. I note that Prof. Dingwall is quoted as making his remarks in his personal capacity. Professionally he would have absolutely no evidence to justify them unless he had carried out, or had the results of, a peer reviewed study of a statistically significant number of people which came to the conclusion he has.
He seems to be ignoring the fact that, left to itself, the virus has an extremely high infection rate, higher than that of the Spanish flu, which killed millions. With such a high rate left unchecked hospitals would be utterly overwhelmed and your chances of dying would be vastly increased. So he's working from a false premise to start with.
If you are in the 60+ age group which is at most risk of dying from C19 and perfectly happy for Nature to do a little weeding job on you, so be it.
Personally, as a reasonably healthy and active member of that age group, it's not terror that keeps me in lockdown, it's a perfectly, IMO, reasonable desire to enjoy life for a few more years yet.
Just as amatter of interest for those who keep on about winter flu deaths being normal, , the ONS figures show that the number of 'excess deaths' up to w/e 24th April, for England and Wales alone, stands at some 38,400. With Scotland and NI it was probably more than 40,000. The 'norm' against which excess deaths are calculated is the same week's average over the past 5 years. So the 'norm' will include winter flu deaths.
ONS figures here if anyone wants to check
www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/deaths/bulletins/deathsregisteredweeklyinenglandandwalesprovisional/weekending24april2020