Most Helpful Guy
Since they are both in law enforcement they likely scumbags every day and they know better than most of us what evil is out there. They love you and just want the best for you.
Now, not to be a dick, but a lot of law enforcement people take those jobs because they like to be in a position of power and authority over average people. Kinda like a legal bully. So maybe your dad and brother just like to feel superior to your bf and end up acting like dicks.
Most Helpful Girl
If he can't handle the mentality of my family (as portrayed by my father) then he doesn't need to be in it.
Guys like to give the guys their daughters/sisters bring home a hard time, a run for their money. Women do the same to the girls their sons/brothers bring home. I was put through the ringer by my boyfriend's sisters and mother. I'm still tested and it's been 3 years. Apparently (according to the brothers-in-law) this is standard procedure for their family until you get married.
If he can't operate on the level my family operates on then he's not for me.
Plus, there's the whole, "Guys only want one thing" deal and despite only wanting one thing themselves, no guy wants THEIR sister to be the girl that the other guy uses.