Why are there no movies about people with bad parents??

I often feel like I don't fit in, when my friends talk about their families. I don't blame them, but they don't understand what it feels like not to be excited to go 'home' for Christmas.

In movies it's not any different. Some movies talk about parents son relationship, but they are always positive. Some heros loose their parents like Spiderman, Simba or Harry Potter etc. Yet their parents are good examples and they have to step in their footsteps. There are no heros or main characters who's parents were just holding them back.

The only example I could think of is iron man whose dad turned out to be a villain. But his parents are still rich, so he got something. Evil stepparents are also a common theme, like in Cinderella or again Harry Potter. But the real parents were still good, they are just gone.

The lack of stories about people who made it out of bad families is discouraging. How are we supposed to make it when there is no narrative to support that? No stories to tell?

I am not complaining about my situation, I know it isn't any body's fault. But I don't think it's right that that there are no movies about people like us, as this subreddit shows me I am not alone.

Am I the only one who thinks this way??

Edit: thanks for all the recommendations!! I have a long watchlist now :)