Well one thing for sure is that the guy created a scene which is wrong. Pressing the stop button on the train just for this is already a wrong thing to do. If he were to educate them, he might as well bring it up to the media or internet to educate them. The tension between HKer and Mainlander in my view is actually not that big. It is just the most vocal people in HK that is creating a scene. One thing that the Chinese professor did said correctly is that HK mentality has now change, they always feel superior than Mainlander, but not tables have turn and mentality did not change. I have yet to see a White person being treated like this on the train. Also I would definitely question that guy, if he had used this action on HK people, who eat in the train, never give up your seat to the elder and the disabled or loud mouths.
People does not know rules sometimes, you just have to inform them letting them know that there is a fine. If they don't care, let it be. This type of so called righteous people have left starbucks coffer cup in the bus all the time.
One thing I learned when I was in my dad hometown in China is that, you can throw away anything on the street (not sidewalk), the reason being is that, there is no garbage can, but there is the garbage lady hire by the government to clean up, since they patrol the streets. Vocal people in HK, IMO, have never really lived in China long enough to understand their culture.
The comment section on the Chinese prof video is kind of funny, since a lot of HK people commented and for sure they probably don't understand Mandarin and the English subtitle, he was talking about the mindset of colony and also Shanghai was used as a comparison. The point that he want to put across from what I understand is that if you look down on your own race, you are a dog.
People from HK that has went out would definitely know that some HK people would “無理娶鬧” and creating scene. Younger generation sometime don't think what is right or wrong, they just think mainstream is always correct.
For the comments where they talk about pregnant women from mainland is taking over the space of local, I can sympathize a bit, but this is created by the health department and the new was blown out of proportion. The first thing we need to think about is how did Hong Kong hospital managed back in the 60s-90s when the illegal migrant from China is giving birth in HK. HK used to have a lot of birth and Hospitals could take in these people. Shortage of staff like nurse and doctor is caused by government, the education system and also the union which put in a cap on how many students can take the course.
one note that I want to comment is that the first video that broadcast the news, that channel is using a new way of broadcasting news (the fox news channel ways putting in deceiving comments also)