Eunice, I didn’t quote your post because it would take a lot of room, but this is my reply for it.
I think Ukrainian people are hard-working though it is kind of difficult for me to be objective since I am a Ukrainian myself. I probably exaggerate a little bit all the good characteristics of Ukrainians and belittle the bad ones. As for nationalism, as any other nation, we are proud of who we are, of our history, cultural heritage, etc. However, there are some extreme nationalists whose ideas sometimes get too crazy.
Educational system in Ukraine is a completely different story. And, unfortunately, a sad one

. Corruption and dishonesty are really big issues. It is true that prospective students must past entrance examinations. However, not everybody does that. If you have connections, you can simply “buy an entrance pass” (in other words, it is called a bribe). Or even if you don’t have connections, if you offer enough money, you’ll be accepted. And then the same things happen on the exams. If you have an exam in calculus, for example, you don’t really need to do differentiation, integration, solve the limits and so on; money can easily do it all for you. Or if you need to write a research paper, don’t bother. You can buy it for about ten bucks.
Of course, not all students “study” this way and not all professors take bribes, but still many do.
I am not encouraging you to reject the possibility of studying in Ukraine. There are many international students there (mostly from Africa, I believe). I knew two guys from Morocco. They didn’t give any bribes and still had good grades.
I don’t know any website that would help you to find out more information about education for foreigners in Ukraine. But you keep looking and, by the way, what exactly are you studying / want to study?