I believe that only a very naive child would not notice the substitution of concepts in this case.
The monument was erected to those soldiers who sacrificed their lives in the war against Nazism. This is a monument to the dead people, not those who came later and established their power over the country. It’s amazing how people can ignore the difference between a fallen soldier and a living official.
Are they all morons or something?
Again, as in the whole anti-Russian propaganda they take one generalized word, for example “Russian” or “Soviet”, and start to hate everything connected with it.