Well with that definition of sin that you hold I won’t even bother to argue about this.
In my opinion it’s at least as bad to discourage birth control when the result is an ever-increasing poor population. Though as I noted above, poor people seem to be pretty good at reproducing even without Catholic views on birth control.
You: “In my opinion it’s at least as bad to discourage birth control when the result is an ever-increasing poor population...”
Me: Ay - there’s the rub! This is why you are one of the moral relativists the pope has warned us about. You can justify anything — even shutting God out of the procreative acts He designed and wills to participate in — based on your relativisitic machiniations (aka rationalization).
Your blindness to this reality is a tragedy. You view sexual desire to be so strong that not even love of God could cause one to curb it or else welcome the pro-creative possibiliities it entails.