refugees from Ukraine should be screened for fascist ties. Azob directly aided and abetted Hong Kong rioters in the past; how do we know there won't be saboteurs and provacateurs disguised as refugees?
China is not a free open western style society like Hong Kong where foreign people of all color and background can just come and go. China mainland is a Cold-War monstrosity. It's just that the Chinese government and people don't want you to see that.
This is why when a pandemic happens, China can be quickly organized and mobilized to the community level. We have 居委会 in China, down to each residential complex. Do you have such in Hong Kong? NO. The "居委会" don't really cross people's life much when things are normal, but when an national state of emergency happens, people are quickly organized and kept in order by these grass root level Communist Party structures/nodes. This is why a lock down is even possible in China.
I know this because I lived in Shenzhen when I was a kid and my dad worked in HK for quite a few years.
You talk about Azov people messing up HK. Well, to be honest, HK is rather easy to mess up by foreigners. Mainland China is not. You guys are perhaps familiar with Slavic people having these groups fights in winters like some kind of sport. Well, “械斗” is pretty the Chinese analogy. Even for my generation (born late 80s to early 90s), we have organized group fights with regular middle/high students against "sporting school"(体校) students.
It is pretty much until the generation of young people born after 2000s, did the society actually become a lot less used and addicted to violence.