Ukraine is not claiming additional Russian land, just what is theirs now and has been recognized by Russia for over a hundred years. It is the pro-Russian side that is making claims on Ukrainian territory. All the map does is show that such claims are historically false.
No? The Ukraine government isn’t (well, except for the Crimea), but you posted this map. Why? To stir up nationalist hatred for Russians is my bet. This is America, we don’t deal in ethnic or religious hatred here. Keep it in your own country.