As painful as it seems, keep in mind that in very few cases is anyone showing a dedication to YOU like you are to your bro's. Maybe "they" haven't taken action because you're still there and things seem OK to "them"?
Always take care of yourself, and keep in mind that the military has worked just fine for 200+ years before you were there.... we're all replaceable.
That was actually a good interview point once - that I had trained my folks so well I could step away for a week and not get a phone call because something was jacked up.
Spongebob