In COVID, we isolated everyone, sick and healthy (utterly unprecedented), then flooded the most vulnerable with sick people (bizarre care home mismanagement), and refused to give treatment or prophylaxis to anyone until they couldn't breathe, at which point they were put on a ventilator.
In some places, that's still the protocol. Others have learned from these mistakes and moved on.
When everyone has, COVID will cease to be a problem.
The original approach has worked for every other novel virus pandemic we've had - which happen regularly every few years. Even the very same people at Imperial College made similarly dire predictions for some of those pandemics at the time - and yet none registered more than a fraction of a flu season.
That original protocol, used repeatedly for years, was abandoned and effectively reversed for COVID, with ongoing disastrous results as anyone can plainly see.