The thing with symbols is that they are easily misappropriated by others. This doesn't mean that they should not be used.
Take the Swastika for example: a Hindu symbol for many years before being hijacked by the Nazi's and turned on its side! Should Hindu's stop using it because others might be offended? I would emphatically say, No!
I used to live in Wood Green in North London where there was shop that sold fairly exotic fruit, veg, foodstuffs as well as accessories, jewelry, scarves, and various other stuff and their plastic carrier bags had columns of swastikas on either side. I was never sure what the shop was supposed to be as it was a strange hybrid of oriental Indian culture with Caribean and South American stuff thrown in for good measure. I was fairly certain it was not some kind of right wing extremist thing though.