I’m sure political factors play the leading role here, but it’s long past the point where you can casually post racist cartoons and act surprised when you’re hit by undesirable consequences. Imagine an African American studies PhD student casually posting racist cartoons depicting black stereotypes. People have been disciplined for much less (e.g. that professor who spoke a common Chinese phrase resembling the n word several times to caution students and later got suspended).
And before you accuse me of things, I’m a long time HN user and I’m not paid to comment. Using a throwaway for radioactive topics.