more like, if there is a place where there is christians, muslims and atheists, then women will prefer the muslims and ateist over christians.
we have around as many christians in Sweden as we have muslims and atheists.
So is it "women" collectively that prefer Muslims and atheists over Christians? Or even the subsection of women who identify as Christian?
I'll assume that you think this holds even for Christian women since that's what you seemed to indicate earlier. Hmm, even though I'm from the neighboring country of Finland, I'm not that intimately familiar with everything that goes on in Sweden. Just based on my general impressions, I would suspect that the average Swedish Christian woman tends to be politically left-wing (certainly by American standards, probably even by Nordic standards). So perhaps there could be an element of "self-hate" with some Swedish Christian women, and it could then get redirected toward white Swedish Christian men in particular. It doesn't even have to be completely internalized. In a country that is heavily leftist and has only a minority (even if a relatively sizeable minority) of Christians, there can be social pressures from the non-Christians within the Christian women's circle of friends, etc.
Another factor to consider: the more conservative Christian women probably marry at a younger age on average than the leftist-liberal Christian ones. So they will be in the dating pool for a shorter period of time, and this can create a sort of biased perspective on the views of the total population of Christian women. There's also the phenomenon that on average, women tend to marry either "up" or at their own level (in terms of social status, etc) whereas men tend to marry either at their own level or "down". So probably many of the men who are left in the dating pool for longer periods are the ones who are (rightly or wrongly) considered "less desirable" by women in general. Many of the "most desirable" Christian men may be already married to the marriage-minded conservative Christian women.
So putting all of this together, it could be that there are enough factors in play to make your observations more believable than I initially thought. So I don't think I'm quite as skeptical of your claim now. Still I suspect there may be some level of exaggeration as to how common this is, but I could be wrong.
None of this is meant to say that I approve the prejudices that single Swedish Christian women may have against single Swedish men. I'm just trying to understand the phenomenon. Just on the basis of what I know about the situation in Finland, probably the vast majority of single Christian women who are serious about their faith would
prefer a Christian man (all other things being equal). But they may be more open to dating non-Christians than in some other countries. As for women who are less serious about their faith but still identify as Christian, the partner's faith or lack thereof may be close to a non-issue but still most of them wouldn't actively prefer a non-Christian man, at least if they haven't had bad experiences dating Christian men.