This isn't true.
The blue areas were part of Russia before the Soviet union and the county had political issues between the Ukrainian and Russian factions, that resulted in a coup in 2014. In that coup, the pro-Ukrainian faction seized power and decided they didn't want to work with the pro Russians. This triggered the succession of Crimea, Donbass and Luhansk. Under Western values of Liberty and Democracy, those areas have a right to leave, to succeed. This is called self-determination. Under Western values, the Ukrainian govt is the human right's abuser because they're attacking their own citizens and denying them minority rights and Russia is protecting the human right's of those people.
But even ignoring all that, the reason why many people including AF are anti this war is because the US instigated it by putting NATO weapons in Ukraine and incorporating the Ukrainian army de facto into NATO. It's another pointless forever war that'll drain the US. The sanctions hurt the US and global economy--look at those oil prices. Ukraine isn't strategically important which is why the US hasn't sent troops. Lastly, the US should want to include Russia (and India) in our economic sphere rather than push them toward China. This was is pure Russiaphobia and media manipulation and the outcome is bad for America and European people.