In terms of self defence I'd agree that trying to learn to fight men is pointless due to the massive strength (and usually aggression) disparity.
I've studied quite a few martial arts over the years - MMA, Krav Maga, Kali/Filipino boxing were the ones I got half decent at. Have done a lot of hard sparring with head gear/gloves, often against men. The first two styles are mixed styles so I also learnt techniques from Brazilian jujitsu, western boxing, and Thai boxing, etc.
For pure 'self defence' (not the same as 'fighting') I think things like Krav Maga are the most effective as they focus on things like situational awareness and drilling quick and effective 'dirty' techniques like ramming fingers right into the eyes, headbutting, and then legging it. But really you won't get proficient unless you commit the time and train with intensity (and lots of schools are pretty shit too tbh).
IMO the most effective art by far for women is Brazilian jujitsu because it's 99% rolling around on the ground and controlling your opponent, so very good at helping avoid getting pinned and raped, especially if you incorporate dirty techniques like biting/pulling ears and clawing/poking eyeballs.
You'd think grappling would favour physical strength more than striking arts do, but whilst it can certainly help sometimes, especially with beginners, BJJ is actually designed to use leverage and allow a weaker individual to fight somebody heavier. When the UFC was style vs style (before everybody started cross training in 'mixed martial arts') the Gracie brothers who created BJJ went undefeated for eight years straight.
There's a video online of one of the early BJJ masters defeating a huge aggressive 250lb bodybuilder whilst weighing only 150lb himself. He smothers the guy's punches and tires him out pretty easily.
A lot of women would likely be put off rolling around with men and the high amount of close bodily contact. However, generally clubs don't tolerate dodgy guys and if you find a good club where you feel at home it can be a really good experience. Alternatively, you could maybe try and mainly train with women but also spar with your partner/husband, but as with most things you need to put in loads of effort to get good. Probably more effort than most women are prepared to commit, but if you want to answer to dealing with men then this is probably it.
One vs one it's pretty much the best single art but not good against multiple attackers. Hence, men are usually advised not to take a street fight to the floor due to the risk of attacker's friend kicking them in the back of the head etc. But for women the main risk imo is being raped.
A few links. Ignore the egregious claim that you can learn it online (surprised to see somebody clearly so proficient claim this and really they should be ashamed)