I find statements like those made in that question strange. Holding the people currently alive responsible for what ancestors may have done.

@JoeW You mean what the claimant argues all around?

I mean how the claim that there is any justification for murder now because of actions that happened in the past before we where born.

@JoeW The claimant goes even further, imo. That teacher (from what I know) represents a lot of what this site here is for: skepticism and tolerance a worldly view. And that is reason enough for him to draw the 'insult' card (a lame move in every single case) and then use that as justification for murder. Only sprinkling on top his own abuse of history for inciting even more of what Macron criticises. Is that well played? I fear he thinks so.