You are misstating their position. They said “If Serbia starts a war, I hope NATO goes all the way and finishes it”. Big emphasis on IF. The only party inviting a war in that scenario is the Serbian government.
I'd say you are doing it to both his an mine.
> Big emphasis on IF
I don't see any conditional in that post AT ALL. The paragraph starts with the explicit invitation and also states the (false and, let's be clear, if targeted at most other ethnicities/nations, immediately recognized as profoundly racist) "reason": "I just hope NATO ... actually go all the way and occupies the country. That's the only way to neuter Serbia for a generation of two ..."
Put as a thought example Native Americans in these sentences and consider how it was "better" for them to be eliminated, and how a text of anonymous self-claimed "Native American" saying that sentence targeted at their own people would appear today.