>>514759779
1. it looks cool (this is the most important reason. a lot of upstart political parties used this symbol at the time just because it was a popular symbol for good luck. you can commonly find swastikas in advertisements, greeting cards and magazine illustrations from America in the 1910s and 20s)
2. it's an ancient indo european symbol and I assume hitler kinda liked that. not sure but it makes sense to me. I know Himmler was all over that stuff