is generally frowned upon

teachers often talk to their students in ways that would be "generally frowned upon" if it took place outside of teacher-student interactions.

I've explained more what I meant above. But yes, generally frowned upon even for teachers, especially since the label is not education-related.

you generalize very quickly

the generalization came after we had a long class discussion

The quickly does not refer to you not thinking about it. It means "quickly, within the structure of your argument," which gives an accusatory feel often used in political polemics.

From a factual perspective, read this: http://lesswrong.com/lw/hu/the_third_alternative/

Please explain what you mean by this.

Is there literally no possible agent you an imagine that you would call "a friend of humankind" that would "push{} for radical reform of Wall Street without considering how possible reforms will impact {} GlaxoSmithKline?" I suppose if you really want to stick to your guns on that one, the problem becomes one of you wanting to use a different definition than your students, and so you should play rationalist taboo.