Absolutely, I do think there should be far more self-defence classes which work to individual limitations and help with your strengths. From the martial arts boards I've read, some schools do this but I think they're a rare and lucky find.
"i have never felt so intimidated in my life as i did when i was in that class for 90 minutes every tuesday."
That sounds so unlucky, booyhoo. I too was in the minority in my last club and often turned up as the only female. I never felt intimidated like that though. I'm really sorry you had that experience.
It is something to seriously consider though - chances are in any martial arts club we're likely to be a minority. Especially if you have previous traumas you're working through, this is going to be a major hurdle to access decent self-defence skills.
On the flip side, I prefer training in almost all-male environments - a) because I have previously worked in male-dominated spheres and now being in a mainly female-dominated environment (at the school gates) it makes a nice change for me and b) because if I'm attacked, it's likely to be a man and I don't want the false confidence by not taking the opportunity to check that any skills I learn can also be used on someone much bigger and stronger than me.
It does need a good instructor to keep people safe though.
I'm kind of on the fence here. I'm really glad I do martial arts. I would use them in a difficult situation, taking the risk I might make things worse. I have gained immeasurably by starting.
On the other hand, I know that I had NO IDEA when I started just how much work that it would entail. It's not a solution for everyone. I've had to fight through a lot of my own personal demons on the way. It's not the easy route to self-protection.
I don't really have a solution here.