As said before, I think the Gransnet demographic probably worries more than other demographics. However, older people are more susceptible to this virus so perhaps concern is justified. I think we do have to put our faith in our vaccinations and the community immunity which is steadily building up. Covid will probably be with us forever now and we have to get on with it.
I still feel, unlike you volver that testing people coming into the country from China would at least tell us what the situation is re those arriving from a badly affected area, but what then? Would they simply be advised to isolate for five days? I can’t see what else could be done. This terrible wave in China will run its course and then the whole world will have to live with it in the same way we live with flu. Get the vaccinations, test if symptomatic, isolate if positive, and seek medical advice or intervention if necessary.