Yeah, sorry, i misread your original statement. Apologize for the wrong equivalency.
Not sure if this was virtue signaling though. According to the german press this guy walks into the bar at 7.30 in the morning and throws the hitler salute several times - So, i wouldn't be surprised if this person was a bit annoying. Not that they guy who beat him up was right, he is being sought after by the police and i hope they find hi. It just seems all were drunk, one of them was annoying, and someone made a bad decision. I suspect if no nazi salute was in play it would've played out the same - drunk people fight each other, but because the nazi salute was involved e all now know about it. Otherwise it would have been not even an article in the local news.
Don't think the american tourist did it once in good spirits, then was assaulted by some SJW, at least according to the german papers, that is far less likely.
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Source? Because my personal experience of 33 years definitely says something different.