If force sensitivity is a recessive trait, it would be possible to be force sensitive but not have force sensitive parents and vice versa.
If force sensitivity was a recessive trait, all kids of two Jedi would have this ability, too. And kids of non-Jedi would have an incredibly small chance to be force sensitive. This would make it almost mandatory that Jedi have families and children, otherwise the order quickly runs out of members.
Not necessarily. If Force sensitivity is recessive, two parents who are not Force sensitive could conceive an offspring who is Force sensitive provided that both of the parents have one dominant gene and one recessive gene.
You’re missing the point. It’s your “vice versa” that I’m arguing against. If force sensitivity was recessive, all Jedi would have both alleles for the recessive gene. This means children of two Jedi would be guaranteed to be force sensitive, too. This would be a great way to get new members for the Jedi order.
And even if a Jedi has children with a non-Jedi, the recessive gene would be spread, so that the chance for two non-Jedi with mixed alleles to meet and have children would increase. Preventing Jedi from having children at all is what doesn’t make any sense.