There are an infinity of things not stipulated in law regarding what will NOT cause you to lose your citizenship. You show me the affirmative law that will do so for a "natural born citizen". I refer you to Rogers v Bellei for the affirmative law regarding that particular "born citizen" losing his.
Put up or shut up.
I'm not the one making claims about the law. You are. In my opinion, there are just two types of citizen--natural born and naturalized (i.e. made natural). Therefore, if you want an example of a Natural Born Citizen losing his citizenship, that would be Bellei, under the terms of the 1952 Immigration and Nationality Act.