China didn't lock down for very long, because it wasn't necessary…just like in a tough flu season we don't lock down the country.
China had it's people wash their hands and wear some masks, otherwise business as usual even in large cities.
If even the host country didn't need to enact a lock down to keep safe, then certainly no other country needed to.
Therefore anyone with a brain can deduce the lock downs are motivated by something else.
This is a very simple logic chain to lay out for normies you may be talking to.