Can you please provide proof that our justice system is failing victims? Do you just mean that the conviction rate is anything less than 100% for accusations?
Also, can you clarify what you mean by "verbally insulting and degrading them"? It's possible you just mean the lawyer is accusing them of lying... which is what you do when you think a person is lying. The accused does have a presumption of innocence, and the accuser may need to be cross examined under some reasonable amount of emotional stress to see if their behavior under stress reveals that they are lying. There's not really any way around this other than "well, we'll just assume they're telling the truth and anyone they accuse is guilty" which is a far worse solution in my opinion.
Also, can you clarify what you mean by "verbally insulting and degrading them"? It's possible you just mean the lawyer is accusing them of lying... which is what you do when you think a person is lying. The accused does have a presumption of innocence, and the accuser may need to be cross examined under some reasonable amount of emotional stress to see if their behavior under stress reveals that they are lying. There's not really any way around this other than "well, we'll just assume they're telling the truth and anyone they accuse is guilty" which is a far worse solution in my opinion.