Unfortunately many of them look similar to a swastika with 3 sides instead of 4.
Yeah, like the triskele logo for the AWB: https://commons.m.wikimedia.org/wiki/File:Flag_of_the_Afrika...
I feel pretty scared for you that you had this experience... It must have been very disturbing. And it's a case of you find there what you bring to it. After i read these comments i couldn't unsee the connection you mentioned for about half an hour. Now it's back normal, to the way it was before i read your comments, for me.
Unintentional swastika are somewhat bad, but unintentional swastika among a bunch of other auto-generated forms aren't a crime I hope.
For example: https://en.m.wikipedia.org/wiki/Illusory_contours
If I draw a dog very poorly, even with missing limbs, you can recognize that as a poorly drawn dog with missing limbs.