Okay, the picture you are now painting is of a man who does have plenty of redeeming qualities. He spends lots of time with his son and he does "lots of nice things for you all". Plus he works incredibly hard and has never lost sight of the value of money. His faults (as far as I can see) are controlling what money he gives you (and in the process, belittling your feelings of being beholden to him) and being verbally critical of your behaviour and personality.
Sometimes I think it's useful to imagine what HE might be posting on here. Perhaps he might say that he works all the hours God sends, that his wife is obsessed with appearances, that she believes that happiness will be gained by buying expensive things and that as a couple, you are growing further apart because your values are so conflicted. We might respond with, "Do you need to work so hard? Why are you avoiding time with your wife?" etc. etc.
Ringing, I'm not saying he's right about any of this, but what's missing is: how are his emotional and intimate needs being met by this marriage?
It's evident that yours are not being met, but have you ever thought what it might be like to walk in his shoes?
I may have missed some clarity on your earlier thread, but is the sex drought entirely down to him? Do you ever use sex as a weapon and withold it if he won't buy something - and give it if he does? If on the other hand you are saying that you have frequently been rejected, then that is a different matter entirely. It might be a bit of both - neither of you really want sex, but it all comes down to the same thing: neither of you are having your needs for intimacy fulfilled by the other.
What is also evident from your posts is the poor quality of your interactions with eachother. He accuses you of being childish, demanding etc., you make jibes about his meanness in front of friends, he responds by pointing out that these things don't matter, you respond by pointedly ignoring him (walking into the bathroom to point out "I'm ignoring you, you know") and so it goes on...
I'm sure you are sick of these talks. These are lousy interactions. What about some "kind" talks, focusing on how you've both lost each other through these years?
Many of us are taking time and care to respond to you about these points and I hope we are provoking some thought and revelation in you. I do think if you want that support and advice to continue, it would be helpful to acknowledge this and let us know what you're thinking as a result.