I am absolutely sure that all groups of people have it in them to commit atrocities, not matter the ethnicity or nationality. But this doesn't mean that all groups of people commit them, all the time. At any given point in time, it's always only some of them - and those who don't must have the clear-headedness, the will, and the means to stop them. Once they are properly stopped, the world will roll out the red carpet to them, as the world did for my parents' generation of Germans. I am very grateful that I did not inherit their guilt, but their responsibilities.
That said, this message shows terrible ignorance:
> They're not doing anything you wouldn't have done. Condemning them is condemning yourself and does no one any good.
The first part might be very well true. My grandparents and their siblings have been mostly perpetrators and bystanders, some where tagging-along, very few were opposed and none of them openly, just in 'inner exile'. I am lucky for the 'mercy of the late birth' that saved me from having to proof many of the virtues that I hold dearly under real pressure. But not condemning the wrongs my grandparents did, and not holding oneself to higher standards than I would hold others, doesn't do any good. Are you sure you are incapable of doing things in another place and another time that would make your today's self condemn you and your actions?