What IS good, and how do we determine it?

[FatAndFaithless]

But your church is also against most (all?) forms of contraception.  You have a doctrine that is demonstrably harmful to human wellbeing.  Why push it as the only choice when we have mountains of data that there are far more viable alternatives?

I have also addressed this. The Church does not teach "hey kids, go have sex before marriage, but don't use condoms!". The Church teaches "Hey kids, don't have sex until marriage." (They should, of course go a lot more into detail than that when speaking to kids, but you get my point).

The contraception law applies to people who are married, since it's a moot point otherwise. Couples who are married are encouraged to be responsible in their family planning, but to do so using fertility monitoring means rather than artificial contraception.

So the catholic church does push abstinence-only education until marriage, where contraception is still wrong.