So gothic font and a Nazi-era symbol = what in your mind? It’s certainly nothing remotely resembling today’s German Air Force. Seems like this guy was trying to provoke a reaction. Seems like he succeeded.
I just stated the facts. I have no idea what the guy knows about his t-shirt design. You can buy a t-shirt with the eagle part (also sans swastika) of the logo on Amazon and it’s just called an Aviator Luftwaffe t-shirt. Is he a Nazi or merely an overgrown Goth?