The same thing that makes lesbian parenting wrong is what makes gay dad parenting so, so right.
See, growing up with a father is really important.
Since growing up with a father is really important, it's even better for a child to grow up with two fathers. If you don't believe me, look at our nation. A simple perusal through history shows that a group of men called the Founding Fathers raised America and we turned out to be the greatest nation on Earth.
What does all this mean? Once we as a people remember that Fathers Are Important (tm), all social problems will disappear.
Yeah. Deep thoughts.