Good morning, LovingmyBrother! Welcome to bpdfamily! So glad you came across our online community, and thanks for sharing what's going on with your brother.
It can be so disheartening when other people aren't ready to face or accept reality. I'm sorry your family isn't taking this more seriously. Many of us here are in the same boat with loved ones. I've had to come to accept that I cannot force my husband to see anything he doesn't want to about his BPD mom. The good news is that because BPD is about dysfunctional
relating, you can learn all about it and you can do right by your brother by changing the way you see him and his behavior.
I'm reading Walking on Eggshells too! Currently on chapter 9. Has anything struck you so far?
Know you're not alone.
pj