That also goes for foreigners in China married to Chinese women. They are also just guests
and could be kicked out at any time. They should think about that as many are arrogant.

BS, mate!

I'm well over 60, and recently retired from teaching here in China, after years and years of illegal teaching while being married to a Chinese spouse, still am BTW. I never was nabbed once for same, and though the immigration officials must have been very suspicious of me for a lot of years, re my prevoius L, F visas/marital RPs, they haven't ever tried to take any deportation action against me.

Granted, in the event of a war between China and the west, I could be in trouble visa/detention-wise. However, I think such a conflict is highly unlikely.

Just for the record, I've taught illegally in 10 provinces/auto regions before my retirement, which is continuing here in China. Maybe the duration and geographical scope of my illegal teaching in China deserves an entry in the Guinness Book of Records! I think I've every right to be arrogant!

Postscript - I DO NOT ADVISE ANYONE TO TEACH ILLEGALLY IN CHINA THESE DAYS!