Ukrainians are Slavic and many ruSSians aren't.
We have 4 times more Slavic people, than there are people living in Ukraine.
There are also a substantial number of non-Slavic people in Ukraine. Mostly the usual suspects, like Azeris, Armenians, Jews, Georgians, and Tatars. However, there are also some more "exotic" flavors, like Greeks, for example. Obviously, what's missing in Ukraine in comparison to Russia are East Asians and Central Asians.
Sort of off-topic, but one thing that surprised me about Ukrainians when I started talking to more of them, is that they really are quite a bit more racist than Russians (who are themselves, not exactly enlightened people). I think the whole "Europeanness" with which they have been recently obsessed, went to their heads a bit. Sometimes, I hear a seemingly educated and normal Ukrainian, spout off something about Azeris, that would really never fly in polite society in Russia. This tells me, it must be more normalized there.
No Eastern European nation does very well in terms of attitudes towards blacks, but Ukraine is definitely the champion when it comes to racism against Africans. I find this very peculiar, since even Africans are smart enough not to emigrate to Ukraine, or even transit through it on the way to gaining refugee status somewhere else. Quite literally, there are many countries in Africa with higher per capita income than in Ukraine. Algeria, Egypt, Botswana, Equatorial Guinea, Gabon - all have a higher gdp per capita (PPP). Yet, any article about something to do with Africa will have the comment section full of monkey gifs.
Recently, on a Ukrainian forum which I visit, one guy was pointing fun at how the "apes" in Thailand were "idiots" for bulldozing luxury cars which were confiscated from criminals and tax dodgers. Others were agreeing with him - "what can you do with these natives...". This really got under my skin... for a lot of reasons - not least because they were seemingly getting angry about a country taking corruption seriously.
I ended up arguing that Thailand has an economy 3X larger than Ukraine's, and that an average Thai earns almost 2X more than an average Ukrainian. They became very sour after this, and started nitpicking about nominal vs ppp numbers (neither really helps their case).
I hope the next time one of them goes to Pattaya again, he won't lord it over the locals as if they were untermenschen.
P.S. - I'm sorry Kania for polluting the thread. I still have to write my Pan Slavic Manifesto.