I have my view from books about stuttering that convinced me that it is a product of a psychological misalignment. And this view has helped me reduce my stuttering from severe to quite mild and it is still improving. Before this I spent more than 20 years with therapists and their science based views that never helped me, on the contrary it made it sometimes worse. So I believe that a lot of stutterers are suffering from a psychological problem rather than a purely genetic one. To be honest Thinking that your stuttering is genetic is possibly hindering you from improving your stuttering