My Belarus Passport with German PR

This is my Belarusian Passport with the ID card and German PR. I was born in Germany and lived in Germany my whole live. Recently I was thinking about traveling a lot more and have been considering a German citizenship. Germany allows dual citizenship, but sadly Belarus does not. Still thinking about applying for German citizenship but something in my mind is still holding me back. I don't know if it is something on a more emotional level.

The stamp is from crossing the Belarus-Lithuania border, instead of crossing the border as usual between Belarus and Poland. Decided to take a detour with the car, because there were massive amounts of people crossing the border at Brest during the holidays.