1st we understand her feeling when she did that video. She is young and vocal who speaks her mind. This is both good and bad but more bad in Singapore context. Unfortunately but true.
Many of her 'complaints' are true but she didn't understand why. It is survival and Singapore can never be Australia simply because we are a small country. But, Australia is also not haven till she finds out more. She is only 21 and has lots of opportunities to find that out. She share her experiences about people greeting her good morning and how is your day is interesting. In my work, I deal with multi-national including Singaporean. Meet any ang moh in the toilet, that .is the standard greeting. Meet a Chinese in the toilet, have you taken your lunch is their greeting.
Back out our homeland and Singaporean. Yes, we need to learn how to analyse things better. Be more receptive to feedback and accept that not everyone is the same. We need to make Singapore work and our next generation is here. We can surely make this place better and not necessary just status quo.
We have to move on and accept other perception on us. If we cannot agree we have problems, then we will never get to improve on what we are lacking simply because we cannot recognise our problem in the first place.