I didn't "reduce" anything, I'm showing what a moral theology manual said from prior to V2, if you bothered even reading the links I posted. I provided numerous articles that show that isn't the case. That was just one example.
I never said it was ok to use all times and everywhere and in every case. Distinctions matter. Chill out.
People jump to conclusions way to fast on this forum.
The Church has never forbidden Catholic couples from spacing children say if they have a large-ish family already (4+ in 6 years for instance). Humanae Vitae makes for provisions for this, as does other moral theology manuals.
We can't just blanket say it's sinful in every case, that's simply not true, and trads need to stop saying it, they just assume everyone is using it for selfish intentions. If a mother is about to blow her brains out cause she is homeschooling a lot of small children, plus taking care of the home, with basically no help from the outside world, these are psychological considerations which can be taken into account for instance, Humanae Vitae basically says this. For instance I know of at least 2 mothers who've had mental breakdowns who were considered trads, devout, with large families.
I just think it's very dangerous to automatically tell people it's a grave sin against matrimony when we don't know people's situations.