The modern Russian state is the product of several genocides too, so this particular example is probably not correct. From 1915 to 1945, probably over one mill

The modern Russian state is the product of several genocides too, so this particular example is probably not correct. From 1915 to 1945, probably over one million Russian Germans perished from unnatural causes under three successive Russian governments—those of Tsar Nicholas II, Lenin, and Stalin—chiefly by means of mass executions, forced labor, deliberate starvation, and brutal deportations. The Holodomor in the Ukraine took place in the 1930. In addition there was large scale deportation of ethnic groups, which effectively also amounted to genocide due to harsh living conditions forced on the deported. A similar case could be made against Britain, with the difference that they were (mostly) done with genociding by 1930.