The Swastika is legally outlawed in some countries for whatever reason they deemed appropriate. It's not debateable.
If you don't like the "Red" Star, then go rally in Russia to have it leagally banned. If you don't like the Japanese "meatball", then go to Japan and have it legally banned.
Don't start applying your own moral standards or some stupid-prettythanged child logic to try and ban them from Aces High, or justify why the Swastika should be displayed.
If a symbol is legally banned within a country or countries, I am sure the HTC would oblige and not use them.