Earlier quoted context omitted.
Why? It's worked for them for a few years now and they have successfully mitigated what would have been millions of deaths. Your claim that it doesn't work because of the "nature of viruses" seems belied by the facts on the ground.
I don't think it has worked until they have zero covid. Maybe a silver lining from this will be people resisting anything happening they perceive as mistreatment from their government.
China's decision to continue on the zero-covid route seems extremely unwise once it was clear that breakouts were happening across the globe and containment was no longer an option - but initially pursuing containment was an extremely wise policy.