"Definitely worth preserving so that people are aware it happened and hopefully prevent it from happening again in the future."
I think it should be preserved as a reminder to all, and I am not necessarily against this happening again in the future and clearly gave a modern day example of The Chinese Communist Party as an enemy of nations and how something like this could potentially happen again.
Please watch this video: https://www.youtube.com/watch?v=AvhVOWwppzM
"My family is Chinese, they are allowed inside - but I am a foreigner and I must sit outside."