I'm trying to understand what he did that was so wrong? He (correctly imo) called out Israel for its violent tendencies. The only mistake he made that I can see is he conflated Israel with the Jewish people generally. But Israel has a massive propaganda campaign leading people to do exactly that (an attack on Israel the country is an attack on Jewish people in general).

If that blogpost was the same, but said Israel, instead of the Jewish people; would there be any issue with it today?

I really don't know much about the Jewish faith or how it interplays with Israel, so I'm just trying to understand where all the anger is coming from. I feel like Israel is acting in bad faith on public forums too, which makes everything more complicated for somebody unfamiliar with it all.

EDIT: Reading more comments I think I get the gist of the controversy, he insinuated all Jewish people should feel guilt for the actions of Israel? I agree that's wrong, but I understand how somebody could come by that belief. Israel themselves have fostered the narrative that Israel represents the Jewish people by constantly conflating an attack on Israel as an attack on the Jewish people.