He's apparently new to the idea that Catholics don't listen to the hierarchy any more, at least not as much as they used to. Back when he was an alter boy, the Pope and the cardinals and bishops exerted a mighty force over their flocks, it started falling apart in the 1970's. By the time I last attended a Catholic church as a member, I knew more Catholic men with a vasectomy (like myself) than non-Catholic men with one. One older guy at a Knights of Columbus after-meeting function (in the lounge of the local Mexican restaurant) acknowledged that a lot of the guys had rationalized it this way: better for them to commit one sin, one time, than to have their wives commit a little sin every day by taking the Pill.
Older Catholics who still think that JFK is President (or at least that's the way it oughta be) are firmly in the Rats' pockets, they don't stop long enough to think about abortion. As long as those nasty, Protestant Republicans are stopped at the polls, they don't care what Rat politicians do. I've met more that way than I care to count up.
These men did not understand what a sin really is. The sin was not confined to the day they had the vasectomy. Every time they congratulated themselves on their cleverness, and were glad that they'd had the vasectomy, they were ratifying the sin. In a sense, they were committing it over again each time they ratified it again with their will.
One older guy at a Knights of Columbus after-meeting function (in the lounge of the local Mexican restaurant) acknowledged that a lot of the guys had rationalized it this way: better for them to commit one sin, one time, than to have their wives commit a little sin every day by taking the Pill. >>>
It's not a one-time sin, every snipped Catholic male or tied female commits a mortal sin each time they have sex since they are preventing procreation and going against God's will. Genesis 38:8-10
The Cathechism says:
"...every action which, whether in anticipation of the conjugal act, or in its accomplishment, or in the development of its natural consequences, proposes, whether as an end or as a means, to render procreation impossible is intrinsically evil." CCC 2370
So basically, anything a person does to block the possibility of life-giving that occurs during the sexual act, is wrong. It inhibits the total giving of yourself to your spouse, and totally shuts the door on God's involvement in this aspect of your life, which might at some point, be to have another child.
It's also a matter of surrendering to God. It's like saying "God, you can have every aspect of my life, I give myself totally to you, except for my sperm (or ovaries and uterus) -- those are mine."
The Bible is very clear on this in Deut 23:2 St. John Crysostom said that said that it is a satanic mulitation that is a slander to God's creation and that preventing a human soul from ever existing is worse than murder.
St. Augustine said take from marriage what marriage is and preventing children creates spouses that are joined in seduction not love. If the deed is done and you didn't know that it was a mortal sin it isn't a mortal sin but you must do everything in your power to get it reversed now that you know. This is God's world and we are His people we have no right to alter His plans.
Encyclical of Pope Paul VI on the regulation of birth
Catholics "who, for serious reasons and with due respect to moral precepts, decide not to have additional children for either a certain or an indefinite period of time," are permitted to use the Natural Family Planning (NFP) method (i.e., abstain from sex during fertile period).
See this web page to learn more about NFP: http://www.ccli.org/