As a child at school we were instructed to raise our hands in this way to attract the teachers attention... to offer an answer to a question... to ask to leave the room! ... I started school 10 years after the end of the war... no-one ever suggested the gesture was inappropriate or Nazi... it wasn't!! neither is it when used in church... does your church express Nazi opinions... if so leave & go somewhere where you feel more at home... Nazism was... is aboout much more than arm gestures.