Most of what you say is true.
Yet every classroom where you share time with students is an opportunity for a learning experience, even if it is only your own.
If your classroom is in China, no doubt your students have been inculcated to the point of abuse on a variety of levels. Effective teachers are always propagandists and provocateurs; in China teachers must also be palliative. Students arrive stripped of initiative, self-respect and joy.
At the very least you can share your disgust with the institution that you both temporarily inhabit.
Your defiance, personal strength, and other independent values that choose to display will certainly be disconcerting to your students, and perhaps for a few: inspiring.