Every bit of available data indicates that the Chinese government would censor you and everyone you know if it had the ability to do so; the ruling party have demonstrated their willingness to violently destroy any person, group, or ideology that they disapprove of. Any other assessment of the situation is, at best, naive to the point of being dangerous. The twentieth century (not to mention the past ten years) has taught us that democracy is a fragile thing; it is extremely important that western citizens be vigilant and open-eyed when assessing who to deal with in educational, political, and business theaters.
[1] https://www.nytimes.com/interactive/2019/04/04/world/asia/xi...