WomensStuff

There’s been a few studies that show dogs are more wary around men for a multitude of reasons. I linked one such study in another reply.

It’s also theorized that dogs bond with women better than men:

Multiple ethnographic accounts describe women's special relationships with dogs, cross-culturally (Cummins 2013). In fact, a remarkable finding that dogs' gaze increased human oxytocin levels (Nagasawa et al. 2015) could be due to effects on women (Kekecs et al. 2016). Women might have greater influence than men in dog-human coevolution, and we may be the first to investigate gendered dog-human coevolution explicitly. We hypothesize that dogs' affiliation with women has stronger effects on mutual utility and dog-personhood than does affiliation with men.

https://bioone.org/journals/journal-of-ethnobiology/volume-40/issue-4/0278-0771-40.4.414/Dog-Human-Coevolution-Cross-Cultural-Analysis-of-Multiple-Hypotheses/10.2993/0278-0771-40.4.414.full

I think some dogs are afraid of types of people. I was a dog foster mom for about a decade, we got dogs who were poorly socialized or just generally sheltered socially so they might be wary of people with darker skin upon meeting I never had a dog who I felt was “racist” like hated POC just like “oh this human is unusual” at first but I DEFINITELY had dogs who HATED men, they were placed at my house because no men lived in my home. One of my current dogs doesn’t really like women, he will choose men over women every time even if it’s a strange man versus me, his mom lol it feels a bit rude but he came from a home where his mom was really mean, granted he doesn’t hate women he strongly prefers men.

I think it just goes back to the same domestic violence stats we all know, those dogs hate men because men are more likely to beat the dog or be violent towards people the dog loves and the dog develops a fear. I’m sure there are some dogs who hate women in the same way it just seems a lot less common in my experience.