This might not be what you want to hear but here it goes. Your boyfriend is an adult. He lives with his family right now, not that it matters much but your BF is an adult. Adulthood meaning that he is free to make his own decisions from what job or career field to go into, what he wants to eat for dinner, even if it is a gallon of icecream and free to decide who he wants to love.
I know it hurts but if I were you girl, I would run from him so fast that I would be testing Einstiens's theories about the speed of light and time slowing down. The reason being is that if they are controlling this aspect of his life and he is allowing it to happen, then what does the future hold for the two of you and who will he choose sides with when something comes down the road later. I know this from experience.
I would give him an ultimatum and tell him to reach between his legs and grab his balls (old military saying) and decide for himself if he wants to be with you in a relationship and living his own life. Or controlled by "mommy and daddy" for the rest of his life. He can make his own way and get out from under their roof, even if he has to work two mediocre jobs. Of course you can allow him a certain amount of time to decide, but, in my opinion, it's not really fair to you to sit and wait, hoping that he picks you over the parents. Personally, I wouldn't even put myself through that becasue it's emotionally draining.
There are more guys out there that will not see the trans prefix. In your avatar you are attractive trans or not and there are many and getting to be more and more open-minded people that will find you attractive and blind to the prefix. Don't waste you life waiting on something that may never come to pass. If you like the guy wait for him to decide what he wants but keep looking just in case that doesn't come to fruitition. Really, who knows what is down the pike for you and when you least expect it, that is when you will meet that special someone perfect for you.
Either way it goes, good luck I wish the best for you no matter what the outcome.