It is however in extremely bad taste, especially if the practise was taken up post WWII.
The swastika itself isn't inherently and solely a nazi symbol, but rather the badge of a defunct (can't imagine why
) German car manufacturer which in turn was borrowed from an ancient fertility/sun symbol and comes in both male and female (mirror image).
Unfortunately for the symbol, it's now associated almost without exception to a very short space of time in the first half of the twentieth century.
The SS insignia as displayed in the photo has likewise come to be associated with evil and so it's use should be avoided.