what about younger people with underlying conditions? Why are they not included in OP's numbers?
Because that is a particular way of looking at the statistics - age is the biggest risk factor, then certain co-morbidities.
Working out the risks to young people without any of these co-morbidities is entirely valid,
What's more the "underlying conditions" thing is important, because young people with conditions thought to be potential risk factors are at significantly lower risk than older people with none.
Other than people in the shielding groups, age is still the biggest predictor of risk for this virus.
The idea that perfectly healthy people in their 20 are dying of this (including healthy people who are fat or have asthma) in lage numbers is false. Countering that narrative is important.
The MEDIAN age of death from Covid in the UK is 81. That is a very elderly cohort. And knowing that and figuring out the public health implications for how we deal with this illness is not callous.
But I guess if you've seen callousness used as a rhetorical device in health arguments for years, you become rather immune to it.
It was the argument of Charlie's Army. It was the argument of the Death Panel fear mongers who opposed the Affordable Care Act in the US.
IME pretty much all arguments about healthcar that make use of callousness rhetoric are poor arguments, often with an entirely different agenda.