> The basic idea is to isolate the vulnerable and eventually protect them with herd immunity.

so what about those who had to suffer to give this herd immunity? If i were a UK citizen, and i got infected, there's a non-zero chance that i will also need a ventilator. Any, even a tiny misstep will cause the numbers to grow beyond the amount of beds available. That i am asked to take this risk is absurd.

Full isolation and quarantine is a more conservative way - for myself at least. Even if the economic damage is severe.