I think you are right, my parents might be like that and I was thinking to much about what my sister said. It really might be their narrow mindedness that prevents them form seeing what I see. You can't set the path for someone else and expect them to follow that path and then get pissed if they chose their own path. How unfair is that? They get pissed because I didn't follow the path they set for me? Am I the asshole here because I didn't follow that path? That's certainly how my sister wanted to describe me.
The choices I had been given on the path my parents set for me were limited. I mean options were ridiculous ! I could have had only a girlfriend of the same nationality, I and her would have needed to have the same religion and follow other stupid rules. You know me well and you know I broke every rule possible. You remember "poor dad, rich dad"? It's the "poor dad" mentality they have. Go to school, get good grades, go to university and get a good job and work your ass off for someone else's benefit. Adding the extra "Get a nice wife of the same nationality and religion and you will be happy" card to that. You know, at some point I can't take them serious anymore. I feel their concern but their reasoning can't be taken seriously.

PS: You have seen the "numbers on a display". You know I could use them and play "Hauptmann von Köpenick" with them. They might change their opinion but that would be soooo superficial!