Friendly Skeptic - Your question is an interesting one and I would like to engage an answer without recourse to theology and scripture as your skepticism is valid.
One perspective on birth control pills is that they are the only FDA approved medication that does not treat a disease. This, on it’s very face, is contrary to the design of nature and the natural law. You take a pill every day to distort a normal, predictable female function. Think about it. Take a pill a day to produce a diseased or at least an abnormal state in women between the ages of 12 and 50. Why females do this, I will never understand. Males would never chemically neuter themselves, which is why a “male pill” would never materialize. Sure, I know males do not get pregnant, but does it make sense to take a drug to distort a natural function whose side effects include fatal complications?
Similarly, surgery to produce sterility is the deliberate mutilation of normally functioning organs. It is the only surgery that is by design and intent, destructive to normal structures in the absence of disease. The only surgery undertaken not to repair or enhance health but to destroy normal tissue. Again, not normal.
Condoms distort the natural manner of intercourse, interfere with the normal and expected pleasure and is the metaphysical equivalent of placing a bag over your partner’s head. It is an unnatural defense against your partner as if his fluids are somehow hostile. Is the male fluid deposited consistent with a natural act in a location by logical design is made to receive it a hostile act requiring protection?
At the end of the day, contracepted sex is as unnatural as an eating disorder. One takes the pleasure and distorted unity and simultaneously rejects the logical end of the act. People who do this with food need intensive therapy and hospitalization to cure them and we correctly call this activity distorted or diseased. People who do the same thing sexually are considered to be “responsible”. But surely it is a disordered act.
Married couples, gifted with the use of reason need to take in all the signs biological, psychological, financial, physical, mental, emotional, etc. to mutually discern if one should or should not engage in a martial act on a given day. Couples are free to be sexually active at any time for any reason and the contrary is also true. Humans have a predictable fertility and near constant sexual potential. Animals have mating seasons. Humans also have reason to discern the predictable signs, all of them, to determine the feasibility or reasonableness of an act taking into consideration the totality of the marital situation on that day. Using reason and the signs that are natural and common to all fertile women, coupled with the particular social situation unique to the couple at that time, the couple determine if it is reasonable or unreasonable to enter into an act that is apt to the procreation of children. It is a day to day decision, not unlike a hundred decisions a man and wife make given the totality of their situation.
It is contrary to Catholic thought and the sacrament of Marriage to state that the marital act is exclusively for the procreation of children. Procreation and unity are equal ends and procreation is ultimately the realm of God. What humans control is the method of the martial act. The act has a particular design and method that is natural and consistent with the dignity of men and women. Distorting one’s normal body is undignified. Likewise, it is contrary to Catholic thought to distort the martial act such that its natural tendency on that day and time is frustrated so it can not meet its expected end.
Now, in fairness, I would like to hear your reasons favoring artificial contraception, why it is a good. But since you placed a contingency on my remarks, may I on yours? Please describe your rationale not using “feelings” (as we all feel) or expressions like “I believe” as we all believe in something.