That map is junk.
Created much later.
If you look at where Russian is the first language and how people vote, those numbers do not jive.
Use earlier pre-war maps. There are many maps floating out there today, most of them trying to low ball the Russian ethnic population. But the pre-war maps are still there and some of the languag as well as election maps as well.
Based on your past posts, I didn’t expect you you vet any information you throw out there. Any junk will do, as long as it appears to back your opinion.
Use older stuff, before Ukraine flooded the internet with how Crimea is nearly 1/2 Ukrainian, hahahaha.
I have already posted this map about two years ago.
It describes the situation in Ukraine in 2001. Right?
It seems fair. It even admits that there are more than 50% ethnic Russians in Crimea.
A very good map. No one is complaining about it.