If ‘protect the vulnerable’/‘herd immunity’ is actioned, it could mean ~25% of pop being shielded (& their households & close contacts). The result might be a harsher lockdown with more severe economic & social consequences than what we have now...
“We know that immunity to coronaviruses wanes over time and reinfection is possible, so lasting protection of vulnerable individuals by establishing herd immunity is very unlikely to be achieved in the absence of a vaccine” 
Building herd immunity? ", a professor of epidemiology at Harvard, likens the strategy to protecting antiques in a house fire by putting them all in one room, standing guard with a fire extinguisher but simultaneously fanning the flames."
Why herd immunity strategy is regarded as fringe viewpoint
I somehow missed this very good article on the problems with herd immunity redux. Featuring me among many smarter people
Why herd immunity strategy is regarded as fringe viewpoint
BREAKING: Explosive article by revealing that , a free market lobby group with a history of downplaying the risks of climate change, secretly organised the Great Barrington Declaration to oppose action against COVID-19
Why herd immunity strategy is regarded as fringe viewpoint: Scientists say idea of ‘focused protection’ for vulnerable people is very hard to achieve and likely to lead to even higher death toll via
Why herd immunity strategy is regarded as fringe viewpoint
Why #HerdImmunity strategy is regarded as fringe viewpoint "Scientists say idea of ‘focused protection’ for vulnerable people is very hard to achieve and likely to lead to even higher death toll"