I agree but I would expect OP to struggle with using the words abuse and victim because of how she values so much the social unit abuse takes place in - within a marriage, in a family. It is not allowed to "fail" although it already did solely because of who he is and what he wants their dynamic to be. It's reasonable to say the scales were turned against her from the beginning because of her age and everything else.
I can only guess, and I only have second-hand experience from how things went with my mum. But I think you might be right right and maybe in OP's mind, if she could only stop being a victim, he might stop being an abuser.
Behind rejecting these labels is a lot of black and white, all or nothing thinking that needs reframing - survivor rather than victim, as you said.
The abuse occurs though, if anything the attempt to wrest some degree of agency back while staying within the harmful dynamic is further proof of it.
There is no successful reframing his actions. The drinking is another way of numbing oneself, now that her feelings are allowed to come out in therapy and in conversation with the posters on here. OP, if you wanted the sex you would not need to drink.
Your values OP and your strong belief in family is probably only one reason why you think you need to stay and make it work, so is your trying to make changes, as futile as it is.
It's actually proof that you would manage without him, and I'd bet my savings you and your children would very soon be a lot happier for it. And I think you might be numbing yourself also because you've started to think the unthinkable. And that's always an awful feeling but I fear it's also necessary. Please look after yourself.