Where are the startup founder parents?

I am so tired of hearing startup founders or productivity gurus who talk about working so hard: skipping the Lost season finale or video games to put in a few extra hours of work.  I am a bootstrapping startup mother who is juggling being a mama practicing attachment parenting, working full time to feed and house us and bootstrapping my startup that is my dream. 

If you don't have kids, then you basically have ALL YOUR TIME to work on your startup, if you want to.  When you have kids, your spare time to do your startup (or anything) goes down to ZERO.  Not a little bit - but zero.  If you are not working in a way that is making direct and necessary money for the family, then you need to be actively caring for and engaged with your children.  Even the few minutes you get after they are asleep needs to be spent doing dishes, preparing food for other mealtimes, doing laundry, showering, that sort of thing. 

I choose not to trade my children's happy childhood with a present mother for my own dream: I want them both.  Where are the mothers and fathers that can show us how it's done?  Is it that it's just too hard - so they don't exist?  Or are they just to be busy to be blogging or social networking so they fly under the radar?