I've had weapons training. Decades ago before tighter gun restrictions came in.
If women were allowed to carry weapons like tasers or pepper spray they'd still need training. Using weapons effectively needs good training, too, not just a bit of practice wherever you buy them from.
It needs to be second nature or the weapon is too easily used against the owner.
Also, how would we restrict these types of weapons to women? Pepper spray or tasers would make it so much easier for a predatory man to take a woman.
Self-defence training is probably the best we can hope for at the moment. Again, it needs to be regular and good quality training so it becomes automatic.
My abusive ex had - and still has - both shotgun and firearms legally held. After attacking me and threatening to kill me (caught on a micro-recorder), he attended the police station with his legal guns (he had and probably still has many illegal weapons hidden). The police praised him for his responsible stance and returned them after the court case. He was let off at court for being a good citizen by surrendering his weapons immediately and without being asked. Laughable.
The coward is terrified of prison. I strongly suspect that is the only reason I am still here but I still live in fear as he's always said he'll take anyone who ever crossed him with him if he was diagnosed with a terminal illness.
I try not to think of the prick too much but I still pray he gets hit by a bus rather than get an illness.
Any and every woman attacked and raped by a man would want to kill him. Men don't understand this unless they're a very rare victim of rape themselves. Many women don't understand it unless they've been a victim, too.
It'll never happen for many reasons but I'd have only rape or other male violence victims run the justice system for these cases.