Whatever is done in the short-term, no matter how seemingly terrible, is justified to prevent long-term evil. Who’s to say which group using this philosophy is correct? It would depend on your political orientation.
Well, in Latin America, as @Robert Lindsay has mentioned, there’s pretty much no middle ground between fascists and communists. We see the “under-siege” mentality. It’s obvious that right-wing freedom in Cuba would lead to a government overthrow. It’s obvious that left-wing freedom would lead to the current Brazilian government being overthrown. Maybe Brazil has less of the “under-siege” thing going on, but it’s still there.