Elanor Roosevelt said that 70 years ago, and to be honest it was unhelpful then and it's unhelpful now.

Not having an emotional reaction to emotional events is unrealistic. Humans are social creatures and we'll always care what other think of us.

I did say clearly in the article that I'm not going to take this to heart, but I still think people should just try not to be dicks. It's not a big ask.