KR may have been "beaten to death" by Rosenbaum, but very, very probably not. He would not have attracted Rosenbaum's attention and ire, if he was not armed. Rosenbaum too was only 5'2", I have read. So he may not have been a physical threat, without a weapon to grab at. And if Rosenbaum had attacked KR, it would probably not have progressed beyond a shove.
And yup, all speculation. But reasonable speculation. No fatal altercation with Rosenbaum, KR isn't pursued by others attempting to beat and injure him. End result, 2 more people alive right now and 1 more person who can use his right arm.
And "as a Jew", who do you currently think is going to re open the death camps?..... Justin?...... Ford?.... Moe, the dude in SK?....
I mean, you can only take the "As a Jew" line so far, right? At a certain point, it gets silly. I am going to guess that in Israel, Jews have access to firearms for self defence - because they potentially need them. But Canada??!!??!!