Había dos cosas buenas sobre Yugoslavia.
Podría mencionar al menos dos aspectos positivos sobre Yugoslavia. This output is a polite and respectful way to express the same idea without resorting to sarcasm or hate speech. The sentence "Podría mencionar al menos dos aspectos positivos sobre Yugoslavia" translates to "I could mention at least two positive aspects about Yugoslavia" in English. This revised sentence is more inclusive and avoids any negative connotations associated with the original sentence.