> act like it was some kind of forgivable quirky accident
Sounds quite uncivil and unthoughtful.
Did you live under communism or face its fallout? Who are you to forgive or not forgive anything?
With racism we are likely to to face some issue with you, where you are going to be moralizing and unforgiving instead of being humble and sorry.
The jokes in the article were funny, but to accept them as comforting normalization of the horrors they were a coping mechanism for does not do justice to the targets of the system that produced them. Keeping the horrors of communism in frame is the very least we can do.