it is harder for chinese students to find jobs. but it doesnot necessarily mean Chinease student will not get a job, and file GC appliation.
I have been here for many years, I only saw one student did not get a job. all others got job eventually.
It is ture that India student may got a job earlier than chinese student, but Chinese student will eventually find a job.
with this said, if there are similar number of students from China and India, there will be similar number of I-485 application.