This is just how practical reason works, by the way. Practical reason allows arguments with contrary conclusions:
- Pleasure is good
- Puppies are pleasant
- Kicking puppies diminishes puppies
- Diminished puppies are less pleasant
- Therefore, one should avoid kicking puppies (ceteris paribus)
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- My baby is good
- My baby is vulnerable
- Therefore, I should protect my baby from that which attacks it (ceteris paribus)
At this point if a puppy attacks my baby I must weigh 5 against 8, which in turn means weighing the premises of the first argument against the premises of the second argument.
A “political” consensus is fine, but if you have no way to motivate someone to accept your position you will have no way to generate a consensus. You will only be able to look for ready-made consensuses. It is similar to the polling fallacy.