Well, the thing is, someone has to actually do it. I, for one, don't want to be the one that imposes how many kids someone can have. So knock yourself out if you want to do that ;)

You seem to be looking for imaginary crusades. There are already a number of organizations who are actively helping in effective and thought-out ways. Planned Parenthood is a great organization which provides actual help rather than fear based, reactionary responses.