Is it better for more people to get COVID-19 quicker and most to get over it, creating a situation where infection increases in a shorter amount of time a larger percentage of the population, and thus becoming resistant going forward
No absolutely not
We are talking about dying.
We need to shut borders, lock down and test. Several weeks ago. No ifs no buts.
If we had done so early enough we would be coming out the other end. The longer the delay the worse it will be medically and economically. The UK government must wake up.
In any case there is no knowledge as to how long exposure protects you. It may be short term, it may be the virus mutates. The only protection is to develop one of the vaccines and to trial the drugs identified by AI. Both the other side of the potential second wave