It does seem almost capriciously cruel that by using NFP, the wife only has sex when she doesn't feel like it, and is not allowed to have sex whenever she actually is in the mood. My own personal observation, is that there are probably subliminal signals that tell the husband when his wife is fertile which stimulates his libido as well. It could be psychological, such as her behaviour when she is experiencing fertility, or it could be physiological, such as scent, etc. In any case, it makes NFP seem not very "natural."
gNostic Family Planning or Noxious Family Planning or Never Family Planning or Neuter Family Planning. The use of the word "Natural" is indeed oxymoronic.
Female physiology is bad for our libidinous and hedonistic Male social karma. Suppress it! Children limit our opportunities for gratification in the future. Let us then limit them!
I denounce libertine pagans who praise families but slash at them with such philosophies. NFP seems to be m*s*u*b*t*o* merely using one's wife's body as it's instrument. Practice Maritial Indulgence!!! Express your love for your wife by celebrating her natural obedience to nature's God by way of her fruitfulness. Have faith in our Father who will certainly provide for us and our children! I'd rather eat beans and rice in a hovel with my babies than dine on fillet mignon in splendor with our good President.