The president himself is Jewish, with something like 8 million Jews living in Ukraine. How much of the far right make up the Ukrainian parliament?

Stepan Bandera

Yeah fair enough, it's not great to be celebrating this guy. I suspect this is more about a big "fuck you" to the Soviet Union rather than celebrating his collaboration with the Nazis, given what happened to Ukraine in the 30's. To them he symbolises the fight for independence from Russia.