Considering that the living standards in (among many other places) Ukraine fell massively as a result of the fall of the USSR, and that the other states that you mentioned are invaders of Iraq and Afghanistan, neither of relevant complaints are serious.
If somebody hates the USSR but not, for example, the current Hungary and Poland, that somebody supports things like colonialism and worse.
Considering that the living standards in (among many other places) Ukraine fell massively as a result of the fall of the USSR, and that the other states that you mentioned are invaders of Iraq and Afghanistan, neither of relevant complaints are serious.
If somebody hates the USSR but not, for example, the current Hungary and Poland, that somebody supports things like colonialism and worse.