> Imagine what it is like to be black in a country where just a few generations back you carried at all times in mixed-race race situations the possibility of being assaulted without recourse or lynched, or in present times accused and convicted of a crime you didn't commit or shot on sight for being in the wrong place at the wrong time.

> Imagine what it is like to be Jewish and have 85% of your relatives systematically wiped out in living memory.

I think you're taking a devils advocate position here, but this is interesting if true. I'm not sure how the actions of people 60-80 years ago should affect how we view ~20-year-olds today? For example, how is the behaviour of white germans in 1945 related to white americans or british in either 1945 or 2015? I think we were on the opposite side of that war.

As for black lynchings in the american south, again this is a localised issue. But lets say your university is in an area where it happened, how likely is it that someones grandfather was involved in a lynching? Pretty small. But even if they were, should someone today be associated with their grandparents criminal behavior? I don't see how.