Should I report my roommate's graduation thesis fraud?

Reporting is not recommended because it is not worth it. I think some answers are a little too sophisticated, but they also represent some people's ideas, even the majority, so reporting won't change anything and it's not worth it. "We fought all the way, not to change the world, but to prevent the world from changing us." There is nothing wrong with fairness, but the environment is not suitable. I hope none of us will change. I think the melting pot represents the darkness of society, and it is difficult for us to change the unfairness. The only thing we can do is to strive to make ourselves capable of not being changed and not doing unfair things in our hearts.