In Germany this is especially entertaining: Die Linke are literally the only political party with seats in the Bundestag who don't think mass murdering of children is totally acceptable as long as the murderers belong to a good race and the children to a bad race.
Even the German Greens hold that view that the race of a person is more important than their actual actions in determining the moral acceptability of what they do, to such an extreme level that even mass murdering of children becomes acceptable if one is a Jew.
So calling Die Linke far-left is pretty much an admission that, at least for these people, in Germany NOT holding the same views of the value of human life and the importance of race as the NAZIs held, is an "extremist" position.