You did the right thing. After doing everything you could do to make him see the light, there were no other options left.
Hopefully your brother will change his thinking one day. Stranger things have happened.
A relation insisted George Zimmerman was “brandishing” his gun.
How does one go from temporarily forgetting one has a gun in one’s pocket while one’s head is being repeatedly smashed into the pavement by a man sitting astride ones trunk to “brandishing” said weapon?