That isn't the case. We've already established covid was in decline before lockdown. And even then we threw out historical pandemic plans in a moment of panic.Of course what you ignore is that having no lockdown measures wouldn't have prevented those deaths.
During January many hospitals in the South East and London had to take over operating theatres and children's wards for Covid patients. Hospital staff were struggling to cope.
Yet you think no lockdown magically would've meant hospitals to be fully open for non Covid treatments.
Countries that didn't lockdown didn't get anything like the deaths modelled by our lockdown advisores. We did not have much in the way of excess deaths in January