I have no problems with people who have different opinions than me.
However, my comment at you is nothing you haven't said to god knows how many parents in who knows how many venues. You are constantly yelling that people are being irresponsible for having their kids, the alternative being that their kids should not exist.
If my words are in any way insulting, or horrible, or as you put it "nasty"... when told to you, an adult. Then what does it make your words, the same words I've said, when directed to mere unborn children, toddlers, or teenagers? If I am nasty for insulting you, you must be quite a bit more horrible than I am for what you have to say about innocent children.