Again: you have ancestors because of the Soviets.
I'm a Spaniard myself, if you ask some of my ancestors, "con Franco se vivía mejor". You know, under a fascist dictatorship. So no, the "argument from authority by old people" isn't convincing to me.
I wish the Soviets had liberated my country from fascism too, unfortunately my country is on the other side of the continent and the Soviet aid during the Spanish Civil War was insufficient (likely due to being the only country to sell weapons to the antifascists while Nazi Germany bombed them and the rest of the world looked the other way).