I like most of your posts, but this one sounds like it is part of the new world order pc nonsense.

I have seen people arrive in a country, having an idealised opinion of the locals, maybe part of that 'noble savage' nonsense. They drive us crazy for a year...and then they flip, no longer seeing them in the same way. Why? Because different cultures are different for a reason. As long as we only visit, we are not forced to see what is bad about them.

I would say, in some cases:

...fight pc tolerance by getting to know each other.

(I seem to recall Israel kicking out tens of thousands, why doesn't your professor remonstrate with them? If he does, I hope the Israeli govt continues to show the good sense it has shown up to now).