I am yekke and I wash before Kiddush and wait three hours, as all Jews should
Those people who are saying ‘I’m not yekke but my ancestors were’ remind me of not frum Jews who say ‘we’ll I’m not Jewish but my ancestors were’ (except that Judasim goes by the mother and Yekki-ness goes by the father). If your ancestors were then so are you, perhaps it is time to get in touch with your heritage. (Maybe they should start yekke birthright tours or something.)