In my opinion three Silesian uprisings (1919, 1920, and 1921) against the German authorities were successful for Poland too.
At least the 1921 insurrection.
Yes, sorry, I forgot about them. Probably because they were on a smaller scale than Wielkopolskie Rising.
IMHO all polish uprisings, not only against Germans were very fruitfull for Poles. All of them contributed alot in Polish self-awareness as europe sufferer.
Yes. I would only correct your last sentence - not as Europe`s sufferer but contributed a lot to raising general Polish awareness.
E.g., in 1830s, there was a danger that Poles would finally adapt to Russian rule, that they will like it as it was. The November Rising of 1830/31 was needed to abolish this national self-complacency, to shatter the opinions and beliefs that it was possible to live under Russian rule. Poles had to start loathing Russia in order to be a free nation again. And Russians, with their persecutions after all Risings, certainly made it easier for Poles.
Without those Risings, Poles would be like Belarussians or East Ukrainians today - Russianised Poles. :):):)
You forgot when you commiebastards crowded the streets in Poland begging for food?
The same things could and can be said about Poles who go the the West, this is the sad truth, did you forget Poles who went to West Berlin to sell vodka and eggs in late 1980s??? . If you are too young to remember these times, listen to the song Berlin Zachodni by Big Cyc.