Is this guy for real?? lol
I think he is. Unfortunately.
The dude had a honest question, there is no need to flame him. And it was a question I asked myself.
This game seems to be the death throes of the west coast brotherhood, which in my opinion is a sad thing.
They were optional in Fallout one, and two. Yes. But so were... most all factions. And the brotherhood in fallout one wasn't -really- that optional, multiple quest lines lead you there and you got power armor from them. Either way they are the only faction to be in all of the fallout games, including that bad one on xbox. (Which I bought, unfortunately.)
This means they are the longest living group out after the nuclear war.
I actually expected the next fallout game on the west coast to be NCR vs. The brotherhood. Democracy fighting it out with people who feel the need to keep tech from others. But that is neither here, nor there.
I assume the brotherhood is now 'east coast' based more then anything, due to bethesda making it so in fallout 3.
As for the Enclave... well, someone already said this. They were meant to die at the end of fallout 2, or at least be so weak they just kind of get ground down. So I can not speak there.