Jews, Germans and Russians are the rulers of Latvia." The most interesting thing is that the Latvians presented themselves in such a derogatory way in 1925, during the period of independence.
But the image is in the spirit of the rampant peasant nationalism/semi-fascism throughout Eastern Europe at the time: "We will kill or drive out the foreigners, take everything from them - and live! ".
As a result, after genocide and ethnocide, Europe reached uni-nationalism (the peak here is Poland - with 99% of Poles). (But elsewhere mononationalities have not yet been finalized, such as in Ukraine or Latvia).