It's almost like George Lucas didn't think things out, and only chose ideas and concepts because he thought they sounded cool at the time.
Give this man a cookie!
So monogamy is ok...

HOOOOOOOOOOOOOOOO, MATRIMONY ZING
Come on,
J_M, up top!
Give this man a cookie factory!
I know you are all about the weird threads and odd comments
Guy but in a galaxy that has trillions of beings, a Jedi Code that is not followed with any semblance of vigor, and a mystical energy field that can manipulate events to benefit "its" sense of balance there really is no reason to believe that just cause a group of people restrict
one contributing factor to reproduction that Force-users could theoretically die out.
Dying out is extreme version of what is happening to their breeding pairs.
The honesty of the matter is that I am fearfully describing is a stunt, unintentional or otherwise, to the evolution of force users.
How things were before order 66, the Galaxy would produce x number of strong enough force users to be noticed by the Republic census bureau, who are "forced" to become Jedi and celibate.
But if these force adept, even untrained, seemingly powerless because they are ignorant, but still with the potential to become Jedi or Sith, were left alone in the wild to keep making babies, each generation potentially stronger force users than the last if anyone would actually take their hand and explain their magical abilities to them...
The only reason Luke could kill womprats from his T-16 is that the force gave him a super human degree of accuracy which non force users would assume is impossible. You know in bowling when kids play and the monkeys behind the shoe counter put planks over the lane gutters so that the kids can't throw gutter balls? That is Luke Skywalkers life. Force blind him, open young Skywalker to a universe where there are gutters, and there is no way he could even hit a dewback from his T-16.
Smug blond git needs a slap.
(Below are logical assumptions more than facts.)
Because the Jedi/Sith do not breed with Jedi/Sith...
1. The ceiling for how powerful a Jedi/Sith can become has remained constant or 20 thousand years.
2. The number of Jedi to oversee the Republic has remained proportionate with the size of the Republic since the founding of the Republic.
...
If the Jedi/Sith started breeding with Jedi/Sith...
1. The ceiling for how powerful a Jedi/Sith can become will rise and continue rinsing with each generation.
2. The number of Jedi overseeing the Republic will exceed the number of Jedi needed to oversee the republic and continue to grow until "most" children have the potential to be strong force users with a modicum of training.