Esposa and Valkyrie have given you pristine guidance. The more you learn, the more confidence you'll gain and the stronger you'll become. That strength will help you detatch from his suffering.
Having to start all over again with another therapist is excruciating. We've had terrible luck with counselors, too, but just like you wouldn't give up searching for an MD to treat your cancer, you/he can't give up on this either. And it IS a cancer. It will eat you alive.
It doesn't sound like you want to leave, but that you are feeling such frustration that the thought is occurring to you. Sometimes leaving is the best thing in the world for you both. If his inaction is causing you too much grief, you might need to leave for a time in order to regroup.
I imagine you might be a bit angry that you did the hard thing and dealt with your own personal CSA trauma, and expect he should do the same. That would certainly be a valid feeling. Are you angry?
Please throw it out here, HD. Get it off of your chest. Val is right; we understand and are here for you, but a counselor for you own self would be in order.
To lighten the mood a bit, I just want to say
WOW!!! Your guy wants to have sex????????

Sending hugs your way!
herowannabe