It would be a more convincing strategy if they actually effectively isolated vulnerable populations, which by his own admission they didn't do. You can't have i

It would be a more convincing strategy if they actually effectively isolated vulnerable populations, which by his own admission they didn't do. You can't have it both ways. Either lockdown applies to everyone or you lock down vulnerable populations even more rigidly than a general lockdown would require (since those populations are far more exposed to infection than they would be under a general lockdown).