Renouncing US Citizenship Increasingly Popular

Story here says renunciations of US citizenship are increasing sharply due to a number of factors, including a change in law allowing renunciants to spend more time in the US while retaining the more favorable tax treatment driving most renunciations.  Several financial advisors have told me they have renunciants for clients, but these advisors (and presumably their clients) are generally clueless about the loss of Second Amendment rights attending renunciation.  Articles about renunciation in the mainstream press typically fail to mention this drawback.