I think it is because there aren't two distinct nationalities in play here. Even the Russian-speaking Ukrainians do not want to rejoin Russia; they would prefer to be Ukrainian.
The situation is much closer to the situation in the United States than to those in other central and eastern European cold war countries. While there are strong regional divisions between Democrats and Republicans -- divisions that are rooted in history and culture -- members of each party have large contingents everywhere. And separatism/partition isn't seriously on the table in the USA.
The situation is much closer to the situation in the United States than to those in other central and eastern European cold war countries. While there are strong regional divisions between Democrats and Republicans -- divisions that are rooted in history and culture -- members of each party have large contingents everywhere. And separatism/partition isn't seriously on the table in the USA.