little surprised it's controversial tbh haha. the whole "sex work is work!" thing is a liberal feminist trope. pornography production should be banned just like pimping should be banned.
from what i've heard/read on the issue, there is a soft ban on pornography in china in the sense that it is made more difficult to access, but if you do there are not significant consequences incurred, which i think is fine. as far as pornography production is concerned i'm not sure.