you need to read your history, it's a bit more recent that that.
I'm aware that many of the countries didn't regain their independence till the 60's or 70's -- Poland didn't regain hers till 89 90 when things really changed - where are our billions from Germany and Russia? So the people born after the 60's and 70's in France, basically the majority, have to account for their ancestors sins according to you. Well, at least you and North Korean ideology have that in common.
You should watch Chlopaki Nie Placza - it explains the situation rather poignantly. For example, it asks, do you think it's easy to capture a big African dude in a net? Of course not. The people who were caught were those too stupid to run away from a guy with a net. Also, chiefs traded their own people for muskets and tobacco as they'd rather have a good smoke than keep around a useless guy. Now the descendants of people who were too stupid to run away from a net or who's own leaders traded them away for some tobacco are telling us that Europeans owe them something because one of our great great great grandparents traded a musket for some slaves - a legal (At the time) economic transaction over 100 hundred years ago? Sorry, but if the roles were reversed and Africans had superior technology to the Europeans do you think they'd be so accommodating to us today? Somehow I doubt it - the Chinese sure as hell aren't - they're only about commerce and money, they don't play this namby pamby BS - and actually their levels of technology were superior in many regards to medieval/rennaisaince/imperial Europe.
Who are the modern colonizers? Chinese. They are in every African, Carribean, European, etc. country. Go to Madagascar even - it's Chinese running vanilla plantations. It's the same scenario all over Africa. Yet no one is calling the Chinese to take in millions of Africans.... They don't want em and that's their right as a sovereign nation with its own border policy and laws.
. I think i will do the schooling in Poland and try to work living in the EU a couple of years,
It's very common for Poles to go to EU for work and then spend most their earnings in PL - especially Germany. This has been going on for ages, even during commie times people would go to Germany, buy goods that were hard to get or dollars, marks, etc. and sell them back in PL or move them onto Russia. A lot of Poles went to UK in the past few years, a lot have returned though because of the higher wages and a lot more opportunities than 10 years ago.