Vatican II took place in the 1960s. Birth control has been around since Onan. "And for this The Lord took his life."
A loose translation and Scripture gives another reason for Onan losing his life.
The fact that he would not fulfill his obligation to his dead brother and raise up children for him.
So the only verse in all of Scripture that the Catholic church and others who oppose contraception hangs its hat on has another, better, interpretation.
Cherry picking verses to make blanket doctrine on is foolish at best. Building on sand.
If someone is looking to condemn contraception, there are better verses to be used.
You really want to base your moral view on contraception on a man who was forced on his dead brother's wife by a father who wanted grandchildren so badly that he impregnated her himself when she prostituted herself on the side of the road?