The insecurity is within yourself and made by you, not made by the stuttering and only you can control it. Some people are short, some are fat, some are dumb, some have a small penis and some stutter. What you make of your disability is up to you. If you think it makes you less of a man then it makes you less of a man. I might dont get the message here but to me this is like going to /r/short and post something like "Thanks to all the women dating us even though we are short". Being a short guy dont make you less of a man than stuttering. I mean really fuck this attitude