Locking 10 people up temporarily to save one life (and multiple people from disability)? Yes it is.

Not Western norms, but norms.

You do know there are vaccines now?

Ps. Locking a couple of million is more appropriate, not 10.

But they are grouping together to get tested for COVID ( and getting it then, it seems)

Vaccines effectively prevent death and hospitalization. Their impact on other after-effects is more limited. That's especially true for the Chinese vaccines.

At this point, we're even starting to understand why. A lot of the after-effects seem to come from early in the progression of the disease, before the adaptive immune system activates. Loss of small, which is a proxy for a lot of neurological impacts, comes before the vaccines does anything (unless you have still have antibodies, which is just a few weeks after the vaccination).

A lot of people in the original Wuhan infection are still suffering after-effects. I think China is basing their policies on that, but that's speculation.