Cloning represents a very clear, powerful, and immediate example in which we are in danger of turning procreation into manufacture.
If you have easy self-contentment, you might have a very, very cheap source of happiness.
We know next to nothing of what we're going to know in 20 or 50 years.
Our only responsibility is to live our own life and take care of our own children.
Sexuality itself means mortality - equally for both man and woman.
Even if certain rogue countries do things we wish nobody did, it doesn't necessarily mean that their foolishness should justify our following suit.