I was glad to hear that the horrible mother apologized, however I have taken a similar approach with the irrational and morally reprehensible, and sometimes I think we just have to make peace with the fact that there are just fucking shit heads, and a lot of them for that matter, in the world. Shit heads who take advantage of the kindness and open-mindness of people who want to be anything but shit heads, and try their damndest to be good people.
Personally, I say shun the shit heads. Make them explain, apologize, bridge the fucking gap, or be ostracized. Ya know?
Sorry, sorry, sorry about your brother. My brother also died in a similar manner. I wish you peace and love and the ability to tune out horrific, absurd messages that don’t merit a response.