It should be assumed when I talk about my brother that there are years of experience behind my perspective on him & what he's going through that are not in my posts, & if you or someone you know superficially matches some of what I describe of him, it's still quite likely that there are a lot of behaviors & choices he makes that you may not.
He seems to be seeking rock bottom at the moment, & it feels like he won't stop until he reaches it, no matter how many times we try to pull him up.