No, a good understanding of fascism and imperialism includes understanding that countries at the periphery either find a way to do the imperialism to their east/south (geographically right now) or to their ethnic others within or be the ones consumed by it.

Poland got to join the imperialists, though with significant disadvantage of being at the behest of exploitation, in exchange for becoming the people who perform (at least partially) the expropriation towards he east at Russia/Belorussia/Ukraine. The ruling class of capitalists always takes this bargain as long as they continue to benefit