I was living in Budapest in a house marked with one of the plaques, and I never had a similar thought. What's the mental process that makes you uneasy with them

I was living in Budapest in a house marked with one of the plaques, and I never had a similar thought. What's the mental process that makes you uneasy with them? Very interesting, but puzzling comment. It reality makes me understand how reality can be perceived in wildly different ways. Thank you for it.