Make NO MISTAKE, the old FAF symbol has politically NOTHING to do with the nazi swastika. This is a case of historical mis-branding , a sad example, how thousands of years old important symbol for different cultures has been stained permanently. This has been addressed many times before, but it seems this is not yet made absolutely clear.
The Finnish Air Force symbol was taken to use in 1918, when a Swedish Count von Rosen donated the first plane, Thulin D, which he had marked with his personal symbol of luck, to Finland's white army which then adopted the markings for the FAF. This was years before nazis existed. Unfortunately, due to the aesthetical similarities between the FAF symbol and the nazi swastika, the markings had to be replaced after WW2 under political pressure.