I'll be honest, it sounds like you have a serious axe to grind here for some reason that you haven't made us party to, but on Austria, Hungary and Romania, which I know the most about, its because they didn't really do much that could be attributed to the nation as a whole as Germany's crimes could be.
Austria as a nation in fact did nothing because it ceased to exist as a nation after being annexed by the Germans in 1938. I would therefore argue that you can't punish the new post war Republic of Austria anymore than you can punish Vichy France. You can punish Austrian war criminals, as indeed was done, or if you're feeling particularly vindicative, the Austrian people in some fashion but the point remains that Austria did not exist as a nation during WW2 and the worst crimes of the Nazis. The fact that they voted to join Germany in 1938 (against the best efforts of the Austrian government incidentally and in a referendum carried out under Nazi supervision) does really make them culpable for the subsequent crimes against humanity of the state that they were annexed by.
As for Hungary, Horthy was famously opposed to Hitler and his policies, he was using Hitler as a means to an end to try and regain 'rightful Hungarian territory'. That in itself should be condemned, but doesn't make them as evil as the Nazis. Now, Hungary did eventually cooperate somewhat with the Holocaust but this was only after Operation Panzerfaust against Horthy and when the Arrow Cross Party was installed as a Nazi puppet government. Thus you have a similar situation to Austria. Hungary can't be blamed for the worst crimes because they were a Nazi puppet when they were committed and when they cooperated with them. Its a flimsy defence perhaps but a major stumbling block to the nation of Hungary itself being considered as evil as their puppet masters.
Romania too is an interesting one. They also experienced a coup, albeit not an explicitly Nazi sponsored one, to installed Ion Antonescu as dictator. Under his rule Romania contributed massively to the Holocaust (at least amongst the small Nazi puppets/allies) and Antonescu even ran his own independent policies for it. The problem then in blaming the nation of Romania as a whole is that these crimes were pinned in Antonescu as a dictator who had seized power (he was executed for war crimes after the war) and not on the nation of Romania as whole.
Long story short, one (Austria) didn't exist as a nation, one (Hungary) actually resisted the worst of Nazi crimes until being couped and turned into a Nazi puppet and one (Romania) had the crimes committed by it during the war blamed on the wartime dictator.