Interesting read, JohNyx. I'm wondering how you got from "The government propagandizes about abstinence" and "The abstinence propaganda doesn't work" to "The government doesn't want actually abstinence happening"? It doesn't seem to logically follow...
(those aren't quotes from your writing but i was paraphrasing)
Government knows abstinence as a contraceptive method does not work, because it has statistical knkowledge of its population's tendencies. First sexual relation age is lowering each year. The government knows teenagers are not gonna stop from having sex.
Government promotes abstinence as a contraceptive method just to be in good terms with the powerful far right.
The far rights agenda is ideological, while the governments agenda is profit.
More people = more work force + more difficulty to make organized resistance = more profit.