It's kinda unprofessional tbh. Just teach the stuff and try to enlighten the less educated with facts. It's up to them to decide whether to remain ignorant.

In Iran evolution is not taught in schools but creationism is. I heard from my friend that even in some universities it's not taught. The regime wants the students to be ignorant about evolution. Suppose an Iranian student attends this professor's class for the first time and suppose she/he hasn't read much about evolution. I think it's better to avoid making such slights in a class where you might have students from different backgrounds. Try to present them with facts on topics that they're poorly educated instead of making slights. Leave the slights to the Internet.

There are also people who believe they are frogs, gods, Professors, the elite and so forth. You cannot probably point out the logic of evidence of a rational theory and present your findings without undermining, hurting or defacing some delusion. it isn't that creationism has any sort of basic evidence on its side, nor a logical theory or any other means of proof, the presented arguments have been rebutted a thousand times and repeated nonsense doesn't make it an argument eventually. You may hold a good belief like me that is based on emotional and personal experience and totally without evidence and I will always admit it to be just that a personal belief and nothing scientific or of any substantial meaning for most others. Which is the opposite of what "believers" usually do, especially when they are organised. Creationism should be discussed in lessons about religion. There you can put up a realm for such things. If you want to enforce creationism as an alternative scientific claim you do the same as muslim fanatics do, you use force to push your personal view onto other people, if you cannot convince them by good and proper evidence they must burn? No. A belief is a private thing. In the hands of a social group it always is a tool to enforce the believers to obey the social rules of their group. It results in violence and bloodshed and misery when you go abroad and use brutality to make others "believe" too. All the others tolerate churches and beliefs and private opinions and so on. Return that tolerance if civilised. Or become basically the equivalent of a religious mind terrorist a short step away from becoming a real terrorist. For your personal fun/need believe that gravity is a delusion. But do not expect others to jump off the same cliff as you. And stop preaching your shit into the minds of children who might be tempted to jump.