You sound very supportive, and I agree that he'd soon notice if that practical support was withdrawn.
However, maybe your current set up is taking its toll. He feels resentful and believes that he is doing all the work, because he simply doesn't see what your input is. You feel resentful that he doesn't see and value your input, which is significant.
As your DS is at school, perhaps you could suggest that you try to find some kind of work, to help relieve the financial burden, so that he doesn't have to be in a job where he works away.
I think one of two things might happen. He might be very pleased with the suggestion, and be very happy to spread the financial burden, as well as the burden of the household chores, and child rearing.
Or, he might not wish to give up his position of the important "breadwinner", in which case, you will know that he considers himself to be more important than you, and his contribution to be more worthwhile. And you can decide if that is a relationship you wish to remain in.
(Either way, I'd get a job of some sort, if I could, if I were you. I would hate to be entirely financially dependant on anyone, if I could avoid it.)