@Grace
Yes, perhaps I am too pessimistic.
However, it's a valid concern. Censorship exists in many forms. It's not what has been said, but what was not said.
Netflix will choose projects based on certain criterias, known only to Netflix, and those people that decide on which projects to fund will have inherit biases based on the culture they are from. Thus, the Netflix corporate employees are americans, with their own values and biases, and decide on projects based on that.
I think of a series called Sweet 18, about a high school girl that has an arranged marriage with a 10 years older man, arranged when she was born. In America this is basically child marriage and isn't kindly looked upon, although this exists in other cultures all over the world. I doubt that Netflix would want to fund these kind of projects. I think that kinda series would never be made by Netflix, and if it was, the actors would all be well into their 30's even the supposedly high school girl, while older kdrama series usually don't lie about age in that manner.
What I like about kdrama are series exactly like Sweet 18, something totally unexpected, showing you something different.
What I notice about netflix kdrama is that it's a very mature content. Often violent (Vincenzo, Squid Game etc). It's good, but as I said, it's what is not being said that is the censorship.