Hello @eternalflow, I think that it's natural what you felt for your brother. We are much more easily irritated and dragged into a competitive attitude by people who are close to us and similar to us. This is because we can relate to them and compare ourselves with them much easier than with distant unknown people. Thanks for sharing the emotion.
I agree that we should accept, understand, and express all of our emotions - as long as expressing our emotions doesn't include serial killings. : )