If the bad idea was that you and your family should be killed or forcibly expelled from your jobs and homes, and you heard it discussed seriously and frequently by your neighbors, police officers, and elected officials--yeah, I think that might diminish your quality of life in some ways.
Look at anti-vaxxers. A small group of hysterical "do-gooders" educated by bad ideas are doing a lot of harm and if it's up to them would reverse the arguably greatest achievement in medical history.
Kids actually get killed thanks to the efforts of those assholes.
If the bad idea was that you and your family should be killed or forcibly expelled from your jobs and homes, and you heard it discussed seriously and frequently by your neighbors, police officers, and elected officials--yeah, I think that might diminish your quality of life in some ways.