[Unfortunately for Dave, or maybe fortunately, Kubo thought he understood what this was about.

After all, his grandfather had gone way over the top when his daughter had the audacity to go and love someone he didn't approve of.]

If they have a problem with it, it's their problem.

[Sudden decisiveness informed his tone.]

I know it's hard when your family doesn't accept you, but if they really loved you, they'd accept you no matter who you loved. If they don't, they're the ones losing out.