I think it shows a certain limitation of imagination that violence (and punching) is the only action some people can associate with the fist. A fist can also be used to grasp something and hold it. Can't you imagine a fist full of daisies? It also gives you something to do with your fingers so they don't go flapping around when you're waving your arms about in joyous abandon. It flexes the muscles of the forearm, making it a good form of isometric exercise. Some people use it in their lovemaking. (Eew, but not violent or wrong.) Of all the ways the ways the fist can be used, it's YOU who chose the punch to the exclusion of all others.
Oh and by the by, if you make me have to punch you, I wouldn't dream of using my fist. I'd use the heel of my palm - hurts you more and me less! :)
Given how violent our world is, it's not difficult to see how the fist could be perceived the same way. However, we know the fist in this case is a symbol of resistance to those who would strip us of our right to choose. Sometimes you have to fight for what you believe in. Fighting, in this case, is not physical.
it's a little restrictive, because there are limited areas where we can add images/text, etc.
let me draft something for you, if you'd like. feel free to email me at my NARAL Pro-Choice America address at email@example.com to continue this conversation (it's easier there!)