My DH says this all the time. And then all of a sudden when I propose something that I'd really like to use, say Magdalena instead of Margaret he suddenly really has an opinion. But I think if I was really whiney about it I could still have my way because yeah, I care more and he just wants me to shut up.
But I'd rather sacrifice a name that I really like or even love to find one that he has expressed some interest in, even if his interest in any name is to a much lesser degree than mine are. I'm just a more passionate person all around, but especially about names. Since we plan on having 1-2 more I hope that maybe some names will be given a second chance later on and he'll have a different opinion in a few years (though I'd never do Magdalena AND Margaret- just so no one thinks that).
I guess what I'm saying, is even if his reasoning is ridiculous and even if he offered I'd try to work with him and not have unilateral control of baby naming.