I hardly know where to begin with this. It doesn't sound like there's much love or respect in your marriage. You say that your children are your sunshine, and he's just a provider. That's the first problem; it's more of a financial partnership than a marriage.
From what I've seen, people who have separate accounts aren't usually happily married: it's an I and I relationship, instead of "we" (my parents have separate accounts, and have been married 40 miserable years). I once heard Dr. Laura say to a caller who was asking a similar question "If you cook dinner, are you the only one who gets to eat it since you cooked it"; just as since he makes more money, should he get to decide how it's spent or whatever?
I think that first of all your marriage needs some work, then you could start working on the finances.
Truthfully, my time at home, making a home for our family, is more valuable than whatever low-paying job I could get right now. It wouldn't be worth the extra stress, tiredness, extra taxes, expenses (driving to work and such). It seems that he sees you more as a paycheck than a helpmeet, companion, equal partner, lover, best friend, etc.
I work hard to manage our money so that we are able to live comfortably on one income: only shop sales, do without cable tv or cell phone plans or preschool or much dining out, or costly entertainment, or new electronic gadgets, or car payments, etc.
Laura Schlessinger has a book called the Proper Care and Feeding of Marriage; if he won't read it, at least read it yourself. It would be a lot less money than marriage counseling. Maybe it would be at the library.
And, Dave Ramsey is a financial guru who teaches people how to get their finances in order and make their money start working for them, rather than being slaves to debt. He's on AM radio, or you could probably find his book the Total Money Make Over at the library.
I wish you all the best, and hope you can find peace in your life.