Their house, their rules. Change the snakes name, it's not like it cares. Naming in that is just a childish attention seeking jab at everyone who might otherwise cut you some slack.

If you are unable to convince them to let you come home, why make it a fight. Either they are stubborn, you are stubborn, you are unable to communicate adequately the lack of danger when properly kept, or deep down you just don't want to.

A snake is not a dog. If you have to give it up, so long as it goes to a good home, the snake won't give a rat's patootie. Are you making enough to support yourself and your snake or do you really need to move back home to make ends meet?

Their fear is not unreasonable. Boas are dangerous. Do you handle yours alone? You seem like a fairly small person and a snake the size of the one on your neck could give you trouble if you were solo and something went South. Perhaps you should give them more time, take them to a zoo or a reptile store and let them get used to something a lot smaller; perhaps a corn or king or hognose.

Non-reptile people often don't get why we like these guys so much, but we often forget that their fears are real.

I'd give this a lot more thought if I were you.