Contraception isn’t wrong because of it’s unnatural-ness. It’s wrong because it actively seeks to remove the procreative nature from an act which is taking place. Why are you hung up on “natural” vs. “unnatural”? Natural contraception would be wrong also (withdrawal, eating plants with properties that cause contraceptive or abortifcient effects, etc…).
I disagree, but that doesn’t really matter because it’s not really what we are discussing. You are resorting to logical fallacy again (strawman, and possibly a non-sequitur depending on where you are going with this).
Who defines “good end”. I think that a couple who is not ready to get pregnant for a time, adn therefore abstains from sex suring their fertile period, is achieving a “good end” [avoiding conception when they cannot support a child] using moral means [self-control].
You are using logical fallacy again. Please stop doing that.
It’s not justified for contraception because contraception seeks to remove the procreative nature from an act which it taking place. We are not allowed to try to remove the procreative nature from an act that we choose to engage in.