If someone has a cat, I believe they like cats.
If someone has five cats, I believe they love cats.
Someone who needs 19 cats and counting, rather than settling for just the five cats of the cat-lover, is someone who apparently could not find satisfaction with those first five cats and acquired the next five in a desperate, but apparently unsuccessful, attempt to fill some aching need.
And then, finding even 10 cats still insufficient to satisfy this need to derive whatever it is they’re attempting to take from these cats, they were then compelled to acquire five more, and then to acquire four more after that.
Such compulsive, insatiable acquisitiveness does not suggest that this person loves cats. It suggests, rather, that this person has been unable to give and receive love with those first 18 cats, and that their prospects for being able to give and receive love from the 19th also seem pretty slim.
Perhaps such a person somehow needs cats. Perhaps they desire to control cats or to possess cats. But it does not seem likely that they love cats.
And that’s pretty much my take on the “Quiverfull” movement.