Obvious as it may sound, people with authoritarian beliefs hiding behind free speech actually consider it as a weakness akin empathy. It allows losers like them to amplify their reach despite not being in power. They abandon their “free speech absolutist” postures the moment they think they are in power.
Sorry to hear about your family.
If the world is going to blatantly ignore history, then the atrocities should become more abundantly available as a reminder. Censoring history is re-writing it.