I don't see how your conclusion follows from your argument. Yes, doing something illegal can count as infringement even if nothing has been stolen or removed. What does that have to do with property? Not all crimes are property-related.
The success rate is 85% after ten years and then decreasing slowly by about 3% per year. So for a 50 year old who got vasectomy at age of 20 it is still around 50%.
Can you cite this? Looking around for statistics it seems that my doctor may have been exaggerating a little, but I can find no figures higher than 30-40% after ten years. Regardless of those figures, the point that my doctor was making, namely that a vasectomy is a permanent decision, remains valid: even if the chance is "only" 15% that you'll never be able to have children, a vasectomy can't be looked at as a temporary means of birth control.
And getting back to the point of the discussion, even with a vasectomy the chances of pregnancy are not zero. The claim that you made was something along the lines of men being able to influence pregnancy to the same degree that women can, and the idea that you would need surgery to achieve anywhere near the reliability that a woman can get with a birth control pill, and still not the kind of certainty that a woman can get with an abortion, makes that idea pretty absurd. Even if it were true that there was some vasectomy procedure which was 100% reversible.
Regarding your experience with condoms: everyone's different, so I'm obliged to believe you when you say that you experience no change when using condoms. The change is so large for me, however, that it's difficult for me to believe you as I am obligated to do. I'm tempted to think that you might just be misremembering the experience.
Happiness is twin floppies.