The average 60 year old is inevitably sicker than the average 20 year old, and there's an increasing proportion of the former in the UK workforce.
Not to say there isn't a real problem here - the UK isn't doing a great job either on healthcare or, to my mind even more importantly, preventative medicine and public health, but you need to control variables to get a robust conclusion.
> Dr. Anthony Leonardi is a lightning rod for debate. If he’s right, this pandemic poses a greater threat than widely assumed.
Almost a year after this article, given what we see in the population, I'd say the results speak for themselves. Unless you're going to tell me that there is a massive coverup happening globally that is hiding the morgue trucks and cooling wagons we saw in the early pandemic.
And the conclusion he's drawing can't be dismissed after merely one year, we'll see what's up after a decade of infections. We're still very early in this shit actually and caution is warranted confidence is not.