If I gagged every time a political statement was forced into Star Trek, my teeth would fall out from all of the acid! But I really doubt they were looking to make a political statement. They simply wanted to offer up something painful from McCoy's past. Pro-suicide or anti-suicide, if that happened to me I would be pretty tore up over it. That particular scene was quite gripping to me and I thought DeForest Kelley did an outstanding job with it. (Much better, by the way, than the Spock scene that followed -- how could that be one of Spock's painful memories? He was just born?