bossin
bossin
bossin

You’re assuming that these 2 parents felt love for their child. It is speculated that the baby was just a prop, something to make them blend in and look less suspicious.

For practicality purposes she’s called Leia because that’s who the vast majority of audience knows her as. She was called by her last name maybe once or twice during the entire original trilogy. Only tried and true Star Wars fans know her as Leia Organa.