What risks? Ensuring your children lead healthier, longer lives? Ensuring that the children they come in contact with don't catch debilitating diseases? Yeah, those are completely terrible risks!
Here's the thing: you can do whatever foolishness you want to yourself, but your children do not deserve to suffer from your foolishness. And neither do others -- by not vaccinating, your are making your children into carriers that will infect people who can't get vaccinated (e.g., young babies, people with weak immune disorders, people who have allergic reactions to vaccinations). Your right to swing your fist ends where other people's faces begin, and by not vaccinating, you are compromising herd immunity and putting many people at risk, most of all your own children.
You have a right to your opinion, and we have a right to tell you that your opinion is idiotic, not based in reality, and barbarous. If there was any justice in the world, your children would be taken from you post haste.