1) None of these incidents occurred in SF

2) Politically motivated violence is rare in the US and right-wing violence obviously exists as well:

https://en.wikipedia.org/wiki/2017_Portland_train_attack

https://en.wikipedia.org/wiki/Charlottesville_car_attack

https://en.wikipedia.org/wiki/October_2018_United_States_mai...

https://en.wikipedia.org/wiki/Pittsburgh_synagogue_shooting

https://en.wikipedia.org/wiki/2020_boogaloo_killings

https://en.wikipedia.org/wiki/Gretchen_Whitmer_kidnapping_pl...

Implying that people who enjoy wearing red hats should avoid SF is like telling liberals to not open their mail. It's absurd.

3) They definitely make 49er hats in bright red:

https://www.rallyhouse.com/assets/images/products/59001909-1...

https://m.hatland.com/prodimg/m1/49ers-super-bowl-xxiii-gold...

https://www.neweracap.com/medias/sys_master/root/h75/h28/891...

https://i5.walmartimages.com/asr/1f6093f0-cbdc-42ac-a096-c65...