My dad gave up, can I do something?

After his factory went to hell 10 years ago, he just gave up and lost his ambition of a better life, they (my parents) had a discussion last night and now, I’m just bitter about it, is frustrating and I nothing comes to my mind, what can I do? What am I supposed to do, I mean, I’m not gonna be there forever to take care of them, I’m in despair, it breaks my heart to see my mom sad about it…